groff, chem.man: Few changes in the manual

[Bjarni Ingi Gislason]

                           Groff Bug Report

GROFF VERSION:
1.22.2 (groff-current from 17th October 2013)

MACHINE:
laptop, i586

OS:
Debian GNU/Linux 7.2 (wheezy) (Linux 3.2.46-1-rt67-1)

COMPILER:
gcc 4.7.2 (Debian 4.7.2-5)

INPUT FILES:
.../groff-current/contrib/chem/chem.man

COMMAND LINE:

DESCRIPTION OF INCORRECT BEHAVIOUR OR FAULTY INPUT (SOURCE):

  Changes:

  - changed to \[en] if it means a dash (pause)

  - changed to \- if it means an option

  Extra space (\, or \/) put between roman and italic characters

SUGGESTED FIX [optional]:

--- chem.man    2013-08-11 08:27:05.000000000 +0000
+++ chem.man.new        2013-11-24 00:19:55.000000000 +0000
@@ -57,7 +57,7 @@ Or read the
 .BR gpl (1).
 You can also write to the
 .nh
-.B "Free Software Foundation, 51 Franklin St - Fifth Floor, Boston,"
+.B "Free Software Foundation, 51 Franklin St \[en] Fifth Floor, Boston,"
 .BR "MA 02110-1301, USA" .
 .hy
 ..
@@ -285,7 +285,7 @@ with the option
 for the activation of
 .BR @address@hidden :
 .IP
-.B "@address@hidden [file\*(El] | groff -p \*(El"
+.B "@address@hidden [file\*(El] | groff \-p \*(El"
 .
 .
 .\" --------------------------------------------------------------------
@@ -455,7 +455,7 @@ puts a circle into any kind of ring.
 .SY ring
 .RB [ \%pointing\  ( up | right | left | down )]
 .RB [ \%aromatic ]
-.RB [ put\ Mol\ at\ \fIn\fP ]
+.RB [ put\ Mol\ at\ \fIn\/\fP ]
 .RB [ \%double\ \c
 .IR i , j\ \c
 .IR k , l\ \c
@@ -945,7 +945,7 @@ and
 you are using.
 .
 You can get both version numbers by calling
-.BR "@address@hidden --version" .
+.BR "@address@hidden \-\-version" .
 .
 .
 .P