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

[Eli Zaretskii]

> From: Glenn Morris <rgm@gnu.org>
> Cc: eliz@gnu.org,  naesten@gmail.com
> Date: Sun, 13 Nov 2016 18:56:37 -0500
> 
> 
> 1) Following from the removal of "This file is part of GNU Emacs.",
> I suggest s/GNU Emacs/This document/ (or "This reference card") in the
> rest of the permission notice.

I don't understand why should we treat these files differently from
any other file in the tree.  They all speak about "GNU Emacs".

>    a) mention the filename "calccard.tex" so people receiving it
>       out-of-context can find the source easily

The name of the file is already mentioned.

>    b) the commented-out FSF address seems kind of useless nowadays...

Again, how is this different from other files?