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[groff] 01/01: contrib/chem: license and Emacs setup


From: Bernd Warken
Subject: [groff] 01/01: contrib/chem: license and Emacs setup
Date: Wed, 03 Sep 2014 15:02:02 +0000

bwarken pushed a commit to branch master
in repository groff.

commit 9badee333f766d4ae0217acd4295d2c7f57054ab
Author: Bernd Warken <address@hidden>
Date:   Wed Sep 3 17:01:54 2014 +0200

    contrib/chem: license and Emacs setup
---
 contrib/chem/ChangeLog                             |   11 ++++++++---
 contrib/chem/Makefile.sub                          |    7 ++-----
 contrib/chem/README.txt                            |    5 +----
 contrib/chem/chem.man                              |    8 ++------
 contrib/chem/chem.pic                              |    4 +---
 contrib/chem/chem.pl                               |   11 ++++-------
 contrib/chem/examples/122/README.txt               |    4 +---
 contrib/chem/examples/122/ch2a_ethyl.chem          |    4 +---
 contrib/chem/examples/122/ch2b_benzene.chem        |    4 +---
 contrib/chem/examples/122/ch2c_benzene_right.chem  |    4 +---
 contrib/chem/examples/122/ch4a_stick.chem          |    4 +---
 contrib/chem/examples/122/ch4b_methyl_acetate.chem |    4 +---
 contrib/chem/examples/122/ch4c_colon.chem          |    4 +---
 contrib/chem/examples/122/ch4d_HCl.H2O.chem        |    4 +---
 contrib/chem/examples/122/ch4e_CaSO4.2H2O.chem     |    4 +---
 contrib/chem/examples/122/ch4f_C.chem              |    4 +---
 contrib/chem/examples/122/ch4g_BP.chem             |    4 +---
 contrib/chem/examples/122/ch4h_methacrylate.chem   |    4 +---
 contrib/chem/examples/122/ch4i_cyclo.chem          |    4 +---
 contrib/chem/examples/122/ch4j_ring4.chem          |    4 +---
 contrib/chem/examples/122/ch4k_ring3.chem          |    4 +---
 contrib/chem/examples/122/ch4l_vertex.chem         |    4 +---
 contrib/chem/examples/122/ch4m_double.chem         |    4 +---
 contrib/chem/examples/122/ch4n_triple.chem         |    4 +---
 contrib/chem/examples/122/ch4o_aromatic.chem       |    4 +---
 contrib/chem/examples/122/ch4p_cholestanol.chem    |    4 +---
 contrib/chem/examples/122/ch4q_rings.chem          |    4 +---
 contrib/chem/examples/122/ch4r_spiro.chem          |    4 +---
 contrib/chem/examples/122/ch4s_heteroatoms.chem    |    4 +---
 contrib/chem/examples/122/ch4t_polycyclic.chem     |    4 +---
 contrib/chem/examples/122/ch4u_nicotine.chem       |    4 +---
 contrib/chem/examples/122/ch4v_histidine.chem      |    4 +---
 contrib/chem/examples/122/ch4w_lsd.chem            |    4 +---
 contrib/chem/examples/122/ch4x_anisole.chem        |    4 +---
 contrib/chem/examples/122/ch4y_reserpine.chem      |    4 +---
 contrib/chem/examples/122/ch4z1_eqn_glutamic.chem  |    4 +---
 contrib/chem/examples/122/ch4z2_text.chem          |    4 +---
 contrib/chem/examples/122/ch5a_size.chem           |    4 +---
 contrib/chem/examples/122/ch6a_pic.chem            |    4 +---
 contrib/chem/examples/122/ch6b_dna.chem            |    4 +---
 contrib/chem/examples/122/chAa_polymer.chem        |    4 +---
 contrib/chem/examples/122/chAb_vinyl_chloro.chem   |    4 +---
 contrib/chem/examples/122/chAc_morphine.chem       |    4 +---
 contrib/chem/examples/122/chAd_chlorophyll.chem    |    4 +---
 contrib/chem/examples/122/chAe_chair.chem          |    4 +---
 contrib/chem/examples/122/chAf_arrow.chem          |    4 +---
 contrib/chem/examples/122/chAg_circle.chem         |    4 +---
 contrib/chem/examples/122/chAh_brackets.chem       |    4 +---
 .../examples/122/chAi_poly_vinyl_chloride.chem     |    4 +---
 contrib/chem/examples/122/chBa_jump.chem           |    4 +---
 contrib/chem/examples/122/chBb_bonds.chem          |    4 +---
 contrib/chem/examples/122/chBc_rings.chem          |    4 +---
 contrib/chem/examples/README.txt                   |    6 +-----
 contrib/chem/examples/atp.chem                     |    4 +---
 contrib/chem/examples/cholesterin.chem             |    4 +---
 contrib/chem/examples/ethamivan.chem               |    4 +---
 contrib/chem/examples/lsd.chem                     |    4 +---
 contrib/chem/examples/morphine.chem                |    4 +---
 contrib/chem/examples/penicillin.chem              |    4 +---
 contrib/chem/examples/reserpine.chem               |    4 +---
 60 files changed, 72 insertions(+), 192 deletions(-)

diff --git a/contrib/chem/ChangeLog b/contrib/chem/ChangeLog
index e72abad..c2c8fda 100644
--- a/contrib/chem/ChangeLog
+++ b/contrib/chem/ChangeLog
@@ -1,3 +1,10 @@
+2014-09-03  Bernd Warken  <address@hidden>
+
+       * chem.pl: New chem version 1.0.4.  Change version().
+
+       * all `chem' source files: Add and improve the copying
+       information.  Remove last update. Add Emacs setting if necessary.
+
 2014-07-05  Bernd Warken  <address@hidden>
        ________________________________________________________________
        * chem.pl: New chem version 1.0.3
@@ -271,8 +278,7 @@
 ________________________________________________________________
 License
 
-Copyright (C) 2006-2010, 2013, 2014
-Free Software Foundation, Inc.
+Copyright (C) 2006-2014  Free Software Foundation, Inc.
 Written by Bernd Warken <address@hidden>.
 
 Copying and distribution of this file, with or without
@@ -283,7 +289,6 @@ This file is part of `chem', which is part of the `groff' 
project.
 
 
 ####### Emacs settings
-
 Local Variables:
 mode: change-log
 End:
diff --git a/contrib/chem/Makefile.sub b/contrib/chem/Makefile.sub
index e4c5e60..34f9fd4 100644
--- a/contrib/chem/Makefile.sub
+++ b/contrib/chem/Makefile.sub
@@ -1,13 +1,10 @@
-# Makefile.sub for `chem' (integration into the `groff' source tree)
+# Makefile.sub for `chem'
 
 # File position: <groff-source>/contrib/chem/Makefile.sub
 
-# Copyright (C) 2006, 2009, 2010, 2013-14
-#   Free Software Foundation, Inc.
+# Copyright (C) 2006-2014  Free Software Foundation, Inc.
 # Written by Bernd Warken <address@hidden>.
 
-# Last update: 30 Mar 2014
-
 # This file is part of `chem' which is part of `groff'.
 
 # `groff' is free software; you can redistribute it and/or modify it
diff --git a/contrib/chem/README.txt b/contrib/chem/README.txt
index b04c594..ef550f5 100644
--- a/contrib/chem/README.txt
+++ b/contrib/chem/README.txt
@@ -24,9 +24,7 @@ are written in the `chem' language.  The file names end with 
.chem.
 
 ####### License
 
-Last update: 27 Feb 2014
-
-Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
+Copyright (C) 2006-2014 Free Software Foundation, Inc.
 Written by Bernd Warken <address@hidden>.
 
 This file is part of `chem', which is part of `groff'.
@@ -45,7 +43,6 @@ The GPL2 license text is available in the internet at
 
 
 ####### Emacs settings
-
 Local Variables:
 mode: text
 End:
diff --git a/contrib/chem/chem.man b/contrib/chem/chem.man
index 8a2f3b2..6dda1ac 100644
--- a/contrib/chem/chem.man
+++ b/contrib/chem/chem.man
@@ -10,15 +10,12 @@
 Source file position:  <groff_source_top>/contrib/chem/chem.man
 Installed position:    $prefix/share/man/man1/@address@hidden
 
-Last update: 5 Jul 2014
-
 This file was written by Bernd Warken <address@hidden>.
 
 It is based on the documentation of Brian Kernighan's original awk
 version of chem at <http://cm.bell-labs.com/cm/cs/who/bwk/index.html>.
 
-Copyright (C) 2006\[en]2009, 2014
-       Free Software Foundation, Inc.
+Copyright (C) 2006\[en]2014  Free Software Foundation, Inc.
 
 This file is part of chem, which is part of groff, a free software
 project.
@@ -979,8 +976,7 @@ version of
 .SH "COPYING"
 .\" --------------------------------------------------------------------
 .
-Copyright (C) 2006\[en]2009, 2014
-       Free Software Foundation, Inc.
+Copyright (C) 2006\[en]2014  Free Software Foundation, Inc.
 .
 .P
 This file is part of
diff --git a/contrib/chem/chem.pic b/contrib/chem/chem.pic
index 2eddac4..4ba066f 100644
--- a/contrib/chem/chem.pic
+++ b/contrib/chem/chem.pic
@@ -3,12 +3,10 @@
 # Source file position: <groff-source>/contrib/chem/chem.pic
 # Installed position: <prefix>/share/groff/<version>/pic
 
-# Copyright (C) 2006, 2008, 2009, 2014 Free Software Foundation, Inc.
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 # Written by Brian Kernighan <http://cm.bell-labs.com/cm/cs/who/bwk>,
 # modified by Bernd Warken <address@hidden>.
 
-# Last update: 27 Feb 2014
-
 # This file is part of `chem', which is part of `groff'.
 
 # `groff' is free software; you can redistribute it and/or modify it
diff --git a/contrib/chem/chem.pl b/contrib/chem/chem.pl
index 3c94dcc..175821e 100755
--- a/contrib/chem/chem.pl
+++ b/contrib/chem/chem.pl
@@ -5,7 +5,7 @@
 # Source file position: <groff-source>/contrib/chem/chem.pl
 # Installed position: <prefix>/bin/chem
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
+my $Copyright = 'Copyright (C) 2006-2014 Free Software Foundation, Inc.';
 # Written by Bernd Warken <address@hidden>.
 
 # This file is part of `chem', which is part of `groff'.
@@ -26,8 +26,7 @@
 # settings
 ########################################################################
 
-my $Program_Version = '1.0.3';
-my $Last_Update = '5 Jul 2014';
+my $Program_Version = '1.0.4';
 
 # this setting of the groff version is only used before make is run,
 # otherwise @VERSION@ will set it.
@@ -1254,12 +1253,10 @@ EOF
 #
 sub version {
   $Groff_Version = $Groff_Version_Preset unless $Groff_Version;
-  my $year = $Last_Update;
-  $year =~ s/^.* //;
   print <<EOF;
-$Chem_Name $Program_Version of $Last_Update (Perl version)
+$Chem_Name $Program_Version (Perl version)
 is part of groff version $Groff_Version.
-Copyright (C) $year Free Software Foundation, Inc.
+$Copyright
 GNU groff and chem come with ABSOLUTELY NO WARRANTY.
 You may redistribute copies of groff and its subprograms
 under the terms of the GNU General Public License.
diff --git a/contrib/chem/examples/122/README.txt 
b/contrib/chem/examples/122/README.txt
index e0049c2..fc4e9ae 100644
--- a/contrib/chem/examples/122/README.txt
+++ b/contrib/chem/examples/122/README.txt
@@ -46,9 +46,7 @@ To get a suitable `groff' output run
 
 ####### License
 
-Last update: 14 Feb 2014
-
-Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
+Copyright (C) 2006-2014 Free Software Foundation, Inc.
 Written by Bernd Warken <address@hidden>.
 
 This file is part of `chem', which is part of `groff'.
diff --git a/contrib/chem/examples/122/ch2a_ethyl.chem 
b/contrib/chem/examples/122/ch2a_ethyl.chem
index 9aed4ee..2a32514 100644
--- a/contrib/chem/examples/122/ch2a_ethyl.chem
+++ b/contrib/chem/examples/122/ch2a_ethyl.chem
@@ -9,9 +9,7 @@ ch2a_ethyl.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Jan 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/ch2b_benzene.chem 
b/contrib/chem/examples/122/ch2b_benzene.chem
index 9c5cd44..1eacbc2 100644
--- a/contrib/chem/examples/122/ch2b_benzene.chem
+++ b/contrib/chem/examples/122/ch2b_benzene.chem
@@ -9,9 +9,7 @@ ch2b_benzene.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 14 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/ch2c_benzene_right.chem 
b/contrib/chem/examples/122/ch2c_benzene_right.chem
index 3b1b41d..463e67e 100644
--- a/contrib/chem/examples/122/ch2c_benzene_right.chem
+++ b/contrib/chem/examples/122/ch2c_benzene_right.chem
@@ -9,9 +9,7 @@ ch2c_benzene_right.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # `groff' is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License (GPL) version 2 as
diff --git a/contrib/chem/examples/122/ch4a_stick.chem 
b/contrib/chem/examples/122/ch4a_stick.chem
index bbe748d..1964b02 100644
--- a/contrib/chem/examples/122/ch4a_stick.chem
+++ b/contrib/chem/examples/122/ch4a_stick.chem
@@ -9,9 +9,7 @@ ch4a_stick.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/ch4b_methyl_acetate.chem 
b/contrib/chem/examples/122/ch4b_methyl_acetate.chem
index c35b512..ae44bd1 100644
--- a/contrib/chem/examples/122/ch4b_methyl_acetate.chem
+++ b/contrib/chem/examples/122/ch4b_methyl_acetate.chem
@@ -9,9 +9,7 @@ ch4b_methyl_acetate.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/ch4c_colon.chem 
b/contrib/chem/examples/122/ch4c_colon.chem
index 6ec053f..cdf7927 100644
--- a/contrib/chem/examples/122/ch4c_colon.chem
+++ b/contrib/chem/examples/122/ch4c_colon.chem
@@ -9,9 +9,7 @@ ch4c_colon.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/ch4d_HCl.H2O.chem 
b/contrib/chem/examples/122/ch4d_HCl.H2O.chem
index 96d70b4..b1bb112 100644
--- a/contrib/chem/examples/122/ch4d_HCl.H2O.chem
+++ b/contrib/chem/examples/122/ch4d_HCl.H2O.chem
@@ -9,9 +9,7 @@ ch4d_HCl.H2O.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/ch4e_CaSO4.2H2O.chem 
b/contrib/chem/examples/122/ch4e_CaSO4.2H2O.chem
index 4ae4434..f76ea37 100644
--- a/contrib/chem/examples/122/ch4e_CaSO4.2H2O.chem
+++ b/contrib/chem/examples/122/ch4e_CaSO4.2H2O.chem
@@ -9,9 +9,7 @@ ch4e_CaSO4.2H2O.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/ch4f_C.chem 
b/contrib/chem/examples/122/ch4f_C.chem
index cc3b35d..c44b6a5 100644
--- a/contrib/chem/examples/122/ch4f_C.chem
+++ b/contrib/chem/examples/122/ch4f_C.chem
@@ -9,9 +9,7 @@ ch4f_C.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/ch4g_BP.chem 
b/contrib/chem/examples/122/ch4g_BP.chem
index ffc4441..f500e0e 100644
--- a/contrib/chem/examples/122/ch4g_BP.chem
+++ b/contrib/chem/examples/122/ch4g_BP.chem
@@ -9,9 +9,7 @@ ch4g_BP.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/ch4h_methacrylate.chem 
b/contrib/chem/examples/122/ch4h_methacrylate.chem
index 79407f5..7e34fda 100644
--- a/contrib/chem/examples/122/ch4h_methacrylate.chem
+++ b/contrib/chem/examples/122/ch4h_methacrylate.chem
@@ -9,9 +9,7 @@ ch4h_methacrylate.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/ch4i_cyclo.chem 
b/contrib/chem/examples/122/ch4i_cyclo.chem
index 5a43860..7641aa1 100644
--- a/contrib/chem/examples/122/ch4i_cyclo.chem
+++ b/contrib/chem/examples/122/ch4i_cyclo.chem
@@ -9,9 +9,7 @@ ch4i_cyclo.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/ch4j_ring4.chem 
b/contrib/chem/examples/122/ch4j_ring4.chem
index 212f46c..0b69348 100644
--- a/contrib/chem/examples/122/ch4j_ring4.chem
+++ b/contrib/chem/examples/122/ch4j_ring4.chem
@@ -9,9 +9,7 @@ ch4j_ring4.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/ch4k_ring3.chem 
b/contrib/chem/examples/122/ch4k_ring3.chem
index abadec1..14baafe 100644
--- a/contrib/chem/examples/122/ch4k_ring3.chem
+++ b/contrib/chem/examples/122/ch4k_ring3.chem
@@ -9,9 +9,7 @@ ch4k_ring3.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/ch4l_vertex.chem 
b/contrib/chem/examples/122/ch4l_vertex.chem
index 461ec75..1594f4c 100644
--- a/contrib/chem/examples/122/ch4l_vertex.chem
+++ b/contrib/chem/examples/122/ch4l_vertex.chem
@@ -9,9 +9,7 @@ ch4l_vertex.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/ch4m_double.chem 
b/contrib/chem/examples/122/ch4m_double.chem
index 37bff36..c7b3da7 100644
--- a/contrib/chem/examples/122/ch4m_double.chem
+++ b/contrib/chem/examples/122/ch4m_double.chem
@@ -9,9 +9,7 @@ ch4m_double.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/ch4n_triple.chem 
b/contrib/chem/examples/122/ch4n_triple.chem
index 61962d1..82ce6fb 100644
--- a/contrib/chem/examples/122/ch4n_triple.chem
+++ b/contrib/chem/examples/122/ch4n_triple.chem
@@ -9,9 +9,7 @@ ch4n_triple.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/ch4o_aromatic.chem 
b/contrib/chem/examples/122/ch4o_aromatic.chem
index d88658e..2da5d25 100644
--- a/contrib/chem/examples/122/ch4o_aromatic.chem
+++ b/contrib/chem/examples/122/ch4o_aromatic.chem
@@ -9,9 +9,7 @@ ch4o_aromatic.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # `groff' is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License (GPL) version 2 as
diff --git a/contrib/chem/examples/122/ch4p_cholestanol.chem 
b/contrib/chem/examples/122/ch4p_cholestanol.chem
index 0788b61..8f2d112 100644
--- a/contrib/chem/examples/122/ch4p_cholestanol.chem
+++ b/contrib/chem/examples/122/ch4p_cholestanol.chem
@@ -9,9 +9,7 @@ ch4p_cholestanol.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/ch4q_rings.chem 
b/contrib/chem/examples/122/ch4q_rings.chem
index 5cd919e..0d41943 100644
--- a/contrib/chem/examples/122/ch4q_rings.chem
+++ b/contrib/chem/examples/122/ch4q_rings.chem
@@ -9,9 +9,7 @@ ch4q_rings.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/ch4r_spiro.chem 
b/contrib/chem/examples/122/ch4r_spiro.chem
index b7eed9c..e7df614 100644
--- a/contrib/chem/examples/122/ch4r_spiro.chem
+++ b/contrib/chem/examples/122/ch4r_spiro.chem
@@ -9,9 +9,7 @@ ch4r_spiro.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/ch4s_heteroatoms.chem 
b/contrib/chem/examples/122/ch4s_heteroatoms.chem
index 714a5b3..2a31aeb 100644
--- a/contrib/chem/examples/122/ch4s_heteroatoms.chem
+++ b/contrib/chem/examples/122/ch4s_heteroatoms.chem
@@ -9,9 +9,7 @@ ch4s_heteroatoms.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/ch4t_polycyclic.chem 
b/contrib/chem/examples/122/ch4t_polycyclic.chem
index a429320..ad79e0d 100644
--- a/contrib/chem/examples/122/ch4t_polycyclic.chem
+++ b/contrib/chem/examples/122/ch4t_polycyclic.chem
@@ -9,9 +9,7 @@ ch4t_polycyclic.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/ch4u_nicotine.chem 
b/contrib/chem/examples/122/ch4u_nicotine.chem
index 7251408..268128a 100644
--- a/contrib/chem/examples/122/ch4u_nicotine.chem
+++ b/contrib/chem/examples/122/ch4u_nicotine.chem
@@ -9,9 +9,7 @@ ch4u_nicotine.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/ch4v_histidine.chem 
b/contrib/chem/examples/122/ch4v_histidine.chem
index beed74f..a5b61c1 100644
--- a/contrib/chem/examples/122/ch4v_histidine.chem
+++ b/contrib/chem/examples/122/ch4v_histidine.chem
@@ -9,9 +9,7 @@ ch4v_histidine.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/ch4w_lsd.chem 
b/contrib/chem/examples/122/ch4w_lsd.chem
index 139a821..0aa6941 100644
--- a/contrib/chem/examples/122/ch4w_lsd.chem
+++ b/contrib/chem/examples/122/ch4w_lsd.chem
@@ -9,9 +9,7 @@ ch4w_lsd.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/ch4x_anisole.chem 
b/contrib/chem/examples/122/ch4x_anisole.chem
index 3fb19cc..ad0e57d 100644
--- a/contrib/chem/examples/122/ch4x_anisole.chem
+++ b/contrib/chem/examples/122/ch4x_anisole.chem
@@ -9,9 +9,7 @@ ch4x_anisole.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/ch4y_reserpine.chem 
b/contrib/chem/examples/122/ch4y_reserpine.chem
index 7803e41..2f6e41e 100644
--- a/contrib/chem/examples/122/ch4y_reserpine.chem
+++ b/contrib/chem/examples/122/ch4y_reserpine.chem
@@ -10,9 +10,7 @@ ch4y_reserpine.chem:
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 # Some corrections were added.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/ch4z1_eqn_glutamic.chem 
b/contrib/chem/examples/122/ch4z1_eqn_glutamic.chem
index 51866ee..7d0c4a2 100644
--- a/contrib/chem/examples/122/ch4z1_eqn_glutamic.chem
+++ b/contrib/chem/examples/122/ch4z1_eqn_glutamic.chem
@@ -13,9 +13,7 @@ delim $$
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 # Some corrections were added.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/ch4z2_text.chem 
b/contrib/chem/examples/122/ch4z2_text.chem
index 14a0ce2..215d219 100644
--- a/contrib/chem/examples/122/ch4z2_text.chem
+++ b/contrib/chem/examples/122/ch4z2_text.chem
@@ -9,9 +9,7 @@ ch4z2_text.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/ch5a_size.chem 
b/contrib/chem/examples/122/ch5a_size.chem
index a98e8da..be3f8c0 100644
--- a/contrib/chem/examples/122/ch5a_size.chem
+++ b/contrib/chem/examples/122/ch5a_size.chem
@@ -9,9 +9,7 @@ ch5a_size.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/ch6a_pic.chem 
b/contrib/chem/examples/122/ch6a_pic.chem
index 9bd7f0e..bbb6a7c 100644
--- a/contrib/chem/examples/122/ch6a_pic.chem
+++ b/contrib/chem/examples/122/ch6a_pic.chem
@@ -9,9 +9,7 @@ ch6a_pic.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/ch6b_dna.chem 
b/contrib/chem/examples/122/ch6b_dna.chem
index 8448147..2fc25e5 100644
--- a/contrib/chem/examples/122/ch6b_dna.chem
+++ b/contrib/chem/examples/122/ch6b_dna.chem
@@ -9,9 +9,7 @@ ch6b_dna.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/chAa_polymer.chem 
b/contrib/chem/examples/122/chAa_polymer.chem
index c70509b..5e0a849 100644
--- a/contrib/chem/examples/122/chAa_polymer.chem
+++ b/contrib/chem/examples/122/chAa_polymer.chem
@@ -9,9 +9,7 @@ chAa_polymer.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/chAb_vinyl_chloro.chem 
b/contrib/chem/examples/122/chAb_vinyl_chloro.chem
index 190342b..26b4386 100644
--- a/contrib/chem/examples/122/chAb_vinyl_chloro.chem
+++ b/contrib/chem/examples/122/chAb_vinyl_chloro.chem
@@ -9,9 +9,7 @@ chAb_vinyl_chloro.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/chAc_morphine.chem 
b/contrib/chem/examples/122/chAc_morphine.chem
index d5402e5..39e3d77 100644
--- a/contrib/chem/examples/122/chAc_morphine.chem
+++ b/contrib/chem/examples/122/chAc_morphine.chem
@@ -9,9 +9,7 @@ chAc_morphine.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/chAd_chlorophyll.chem 
b/contrib/chem/examples/122/chAd_chlorophyll.chem
index d120d94..5595474 100644
--- a/contrib/chem/examples/122/chAd_chlorophyll.chem
+++ b/contrib/chem/examples/122/chAd_chlorophyll.chem
@@ -9,9 +9,7 @@ chAd_chlorophyll.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/chAe_chair.chem 
b/contrib/chem/examples/122/chAe_chair.chem
index 722b734..3e7d668 100644
--- a/contrib/chem/examples/122/chAe_chair.chem
+++ b/contrib/chem/examples/122/chAe_chair.chem
@@ -9,9 +9,7 @@ chAe_chair.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/chAf_arrow.chem 
b/contrib/chem/examples/122/chAf_arrow.chem
index 02f0dc6..a26584f 100644
--- a/contrib/chem/examples/122/chAf_arrow.chem
+++ b/contrib/chem/examples/122/chAf_arrow.chem
@@ -12,9 +12,7 @@ delim $$
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/chAg_circle.chem 
b/contrib/chem/examples/122/chAg_circle.chem
index 5a2a902..90a6124 100644
--- a/contrib/chem/examples/122/chAg_circle.chem
+++ b/contrib/chem/examples/122/chAg_circle.chem
@@ -9,9 +9,7 @@ chAg_circle.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/chAh_brackets.chem 
b/contrib/chem/examples/122/chAh_brackets.chem
index 65c195c..0bda3c8 100644
--- a/contrib/chem/examples/122/chAh_brackets.chem
+++ b/contrib/chem/examples/122/chAh_brackets.chem
@@ -12,9 +12,7 @@ delim $$
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/chAi_poly_vinyl_chloride.chem 
b/contrib/chem/examples/122/chAi_poly_vinyl_chloride.chem
index 790710d..f99679e 100644
--- a/contrib/chem/examples/122/chAi_poly_vinyl_chloride.chem
+++ b/contrib/chem/examples/122/chAi_poly_vinyl_chloride.chem
@@ -10,9 +10,7 @@ chAi_poly_vinyl_chloride.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/chBa_jump.chem 
b/contrib/chem/examples/122/chBa_jump.chem
index 9820182..6e1af6e 100644
--- a/contrib/chem/examples/122/chBa_jump.chem
+++ b/contrib/chem/examples/122/chBa_jump.chem
@@ -9,9 +9,7 @@ chBa_jump.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/chBb_bonds.chem 
b/contrib/chem/examples/122/chBb_bonds.chem
index 032256a..30ee356 100644
--- a/contrib/chem/examples/122/chBb_bonds.chem
+++ b/contrib/chem/examples/122/chBb_bonds.chem
@@ -9,9 +9,7 @@ chBb_bonds.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/122/chBc_rings.chem 
b/contrib/chem/examples/122/chBc_rings.chem
index 96d24e2..5e1dca4 100644
--- a/contrib/chem/examples/122/chBc_rings.chem
+++ b/contrib/chem/examples/122/chBc_rings.chem
@@ -9,9 +9,7 @@ chBc_rings.chem:
 #   by Jon L. Bentley, Lynn W. Jelinski, Brian W. Kernighan
 #   <http://cm.bell-labs.com/cm/cs/cstr/122.ps.gz>.
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
-
-# Last update: 27 Feb 2014
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 
 # This file is part of `chem', which is part of `groff'.
 
diff --git a/contrib/chem/examples/README.txt b/contrib/chem/examples/README.txt
index f12c328..cd5a3ad 100644
--- a/contrib/chem/examples/README.txt
+++ b/contrib/chem/examples/README.txt
@@ -37,9 +37,7 @@ chemically.
 
 ####### License
 
-Last update: 27 Feb 2014
-
-Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
+Copyright (C) 2006-2014 Free Software Foundation, Inc.
 Written by Bernd Warken <address@hidden>.
 
 This file is part of `chem', which is part of `groff'.
@@ -58,9 +56,7 @@ The GPL2 license text is available in the internet at
 <http://www.gnu.org/licenses/gpl-2.0.html>.
 
 
-
 ####### Emacs settings
-
 Local Variables:
 mode: text
 End:
diff --git a/contrib/chem/examples/atp.chem b/contrib/chem/examples/atp.chem
index f122d8f..e2a4f7a 100644
--- a/contrib/chem/examples/atp.chem
+++ b/contrib/chem/examples/atp.chem
@@ -11,11 +11,9 @@ atp.chem:
 # Source file position: <groff-source>/contrib/chem/example/atp.chem
 # Installed position: <prefix>/share/doc/groff/example/chem/atp.chem
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 # Written by Bernd Warken <address@hidden>.
 
-# Last update: 27 Feb 2014
-
 # This file is part of `chem', which is part of `groff'.
 
 # `groff' is free software; you can redistribute it and/or modify it
diff --git a/contrib/chem/examples/cholesterin.chem 
b/contrib/chem/examples/cholesterin.chem
index 8df5a44..7e44167 100644
--- a/contrib/chem/examples/cholesterin.chem
+++ b/contrib/chem/examples/cholesterin.chem
@@ -9,11 +9,9 @@ cholesterin.chem:
 # Source file position: <groff-source>/contrib/chem/example/cholesterin.p
 # Installed position: <prefix>/share/doc/groff/example/chem/cholesterin.p
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 # Written by Bernd Warken <address@hidden>.
 
-# Last update: 27 Feb 2014
-
 # This file is part of `chem', which is part of `groff'.
 
 # `groff' is free software; you can redistribute it and/or modify it
diff --git a/contrib/chem/examples/ethamivan.chem 
b/contrib/chem/examples/ethamivan.chem
index 91b82f7..47d9799 100644
--- a/contrib/chem/examples/ethamivan.chem
+++ b/contrib/chem/examples/ethamivan.chem
@@ -8,11 +8,9 @@ ethamivan.chem:
 # Source file position: <groff-source>/contrib/chem/example/ethamivan.chem
 # Installed position: <prefix>/share/doc/groff/example/chem/ethamivan.chem
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 # Written by Bernd Warken <address@hidden>.
 
-# Last update: 27 Feb 2014
-
 # This file is part of `chem', which is part of `groff'.
 
 # `groff' is free software; you can redistribute it and/or modify it
diff --git a/contrib/chem/examples/lsd.chem b/contrib/chem/examples/lsd.chem
index 4f735be..92f6272 100644
--- a/contrib/chem/examples/lsd.chem
+++ b/contrib/chem/examples/lsd.chem
@@ -8,11 +8,9 @@ lsd.chem:
 # Source file position: <groff-source>/contrib/chem/example/lsd.p
 # Installed position: <prefix>/share/doc/groff/example/chem/lsd.p
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 # Written by Bernd Warken <address@hidden>.
 
-# Last update: 14 Feb 2014
-
 # This file is part of `chem', which is part of `groff'.
 
 # `groff' is free software; you can redistribute it and/or modify it
diff --git a/contrib/chem/examples/morphine.chem 
b/contrib/chem/examples/morphine.chem
index 69057c7..67a72c9 100644
--- a/contrib/chem/examples/morphine.chem
+++ b/contrib/chem/examples/morphine.chem
@@ -10,11 +10,9 @@ morphine.chem:
 # Source file position: <groff-source>/contrib/chem/example/morphine.chem
 # Installed position: <prefix>/share/doc/groff/example/chem/morphine.chem
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 # Written by Bernd Warken <address@hidden>.
 
-# Last update: 5 Jan 2014
-
 # This file is part of `chem', which is part of `groff'.
 
 # `groff' is free software; you can redistribute it and/or modify it
diff --git a/contrib/chem/examples/penicillin.chem 
b/contrib/chem/examples/penicillin.chem
index a063312..f2d6607 100644
--- a/contrib/chem/examples/penicillin.chem
+++ b/contrib/chem/examples/penicillin.chem
@@ -11,11 +11,9 @@ penicillin.chem:
 # Source file position: <groff-source>/contrib/chem/example/morphine.chem
 # Installed position: <prefix>/share/doc/groff/example/chem/morphine.chem
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 # Written by Bernd Warken <address@hidden>.
 
-# Last update: 14 Feb 2014
-
 # This file is part of `chem', which is part of `groff'.
 
 # `groff' is free software; you can redistribute it and/or modify it
diff --git a/contrib/chem/examples/reserpine.chem 
b/contrib/chem/examples/reserpine.chem
index ca76774..b6e4e92 100644
--- a/contrib/chem/examples/reserpine.chem
+++ b/contrib/chem/examples/reserpine.chem
@@ -8,11 +8,9 @@ begin chem
 # Source file position: <groff-source>/contrib/chem/example/reserpine.chem
 # Installed position: <prefix>/share/doc/groff/example/chem/reserpine.chem
 
-# Copyright (C) 2006, 2009, 2014 Free Software Foundation, Inc.
+# Copyright (C) 2006-2014 Free Software Foundation, Inc.
 # Written by Bernd Warken <address@hidden>.
 
-# Last update: 14 Feb 2014
-
 # This file is part of `chem', which is part of `groff'.
 
 # `groff' is free software; you can redistribute it and/or modify it



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