bug#24520: 25.1.50; calccard.tex has somewhat unclear licensing

[Richard Stallman]

[[[ To any NSA and FBI agents reading my email: please consider    ]]]
[[[ whether defending the US Constitution against all enemies,     ]]]
[[[ foreign or domestic, requires you to follow Snowden's example. ]]]

Here's the diff that is needed for calccard.tex.

The other reference cards should be handled like this one.
Can you take care of that?


diff -u /home/rms/emacs-git/build-jun-5/etc/refcards/calccard.tex.\~1\~ 
/home/rms/emacs-git/build-jun-5/etc/refcards/calccard.tex
--- /home/rms/emacs-git/build-jun-5/etc/refcards/calccard.tex.~1~       
2016-06-05 14:08:00.902799078 -0400
+++ /home/rms/emacs-git/build-jun-5/etc/refcards/calccard.tex   2016-10-30 
21:41:12.577638997 -0400
@@ -22,13 +22,17 @@
 
 % Copyright (C) 1987, 1992, 2001-2016 Free Software Foundation, Inc.
 
-% This file is part of GNU Emacs.
-
 % GNU Emacs is free software: you can redistribute it and/or modify
 % it under the terms of the GNU General Public License as published by
 % the Free Software Foundation, either version 3 of the License, or
 % (at your option) any later version.
 
+% As a special additional permission, you may distribute reference cards
+% printed, or formatted for printing, with the notice "Released under
+% the terms of the GNU General Public License version 3 or later"
+% instead of the usual distributed-under-the-GNU-GPL notice, and without
+% a copy of the GPL itself.
+
 % GNU Emacs is distributed in the hope that it will be useful,
 % but WITHOUT ANY WARRANTY; without even the implied warranty of
 % MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
@@ -75,9 +79,7 @@
 \centerline{designed by Dave Gillespie and Stephen Gildea,}
 \centerline{for GNU Emacs Calc.}
 
-Permission is granted to make and distribute copies of
-this card provided the copyright notice and this permission notice
-are preserved on all copies.
+Released under the terms of the GNU General Public License version 3 or later.
 
 %For copies of the GNU Emacs Calc manual, write to the Free Software
 %Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,

Diff finished.  Sun Oct 30 21:43:25 2016

-- 
Dr Richard Stallman
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