[Bug-gnulib] what encodings should be used in gnulib source files?

[Paul Eggert]

I noticed that a couple of gnulib files (diacrit.c, strverscmp.c) use
ISO 8859-1 encodings.  For source files, some gnulib-using packages
seem to prefer UTF-8, others iso-2022-7bit, others Ascii.

Any objections if I turn these files into Ascii?  The only usages here
are contributors' names.

Also, I notice that lib/ChangeLog uses utf-8 and m4/ChangeLog uses
ISO-8859-1 (I think -- it confuses Emacs, whatever it is).  OK to
standardize on utf-8 here?  I would put a "coding:" entry at the
bottom, for Emacs's sake.  The other possibilities would be ASCII
and/or iso-2022-7bit.

If some people use pre-21.3 versions of Emacs then utf-8 wouldn't be
that suitable: ascii's probably the way to go.