File names in the distribution

[Eli Zaretskii]

make-dist complains about some of the *.el file names being too long
(presumably, for the 14-character limit on some oldish systems).
What, if anything, should we do about that?

Here's the list of the offending files:

lisp/gnus/format-spec.el
lisp/gnus/mail-source.el
lisp/minibuf-eldef.el
lisp/pcmpl-linux.el
lisp/rfn-eshadow.el
lisp/smerge-mode.el
lisp/international/latin1-disp.el
lisp/international/utf-8-subst.el
lisp/net/eudc-export.el
lisp/net/eudc-hotlist.el
lisp/progmodes/cc-bytecomp.el
lisp/progmodes/idlw-toolbar.el
lisp/textmodes/reftex-cite.el
lisp/textmodes/reftex-global.el
lisp/textmodes/reftex-index.el
lisp/textmodes/reftex-parse.el
lisp/textmodes/reftex-vars.el