bug#23400: Emacs 25.0.92.1: etags fails to handle file format generated by Exuberant Ctags 5.8 in etags emulation mode

[Lars Ingebrigtsen]

Robert Weiner <rswgnu@gmail.com> writes:

> Exuberant Ctags allows one to generate what is said to be an etags
> compatible TAGS file.  However, a call to list-tags fails on such a
> file because it includes 2 lines of file names per file rather than
> one.

Apparently brew still includes the 5.8 version of this ctags program, so
it fixes a real problem.  Dmitry objected to the patch because
supporting this ctags project holds back progress for humanity, which is
true, but since it fixes a problem seen in the wild, I applied it
anyway.

If anybody objects, feel free to revert.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no