bug#39663: [External] : bug#39663: 27.1; ebnf2ps bugs

[Eli Zaretskii]

> From: Mattias Engdegård <mattiase@acm.org>
> Date: Wed, 1 Sep 2021 10:23:28 +0200
> Cc: Stefan Monnier <monnier@iro.umontreal.ca>,
>         Drew Adams <drew.adams@oracle.com>, Eli Zaretskii <eliz@gnu.org>,
>         "39663@debbugs.gnu.org" <39663@debbugs.gnu.org>,
>         Vinicius Jose Latorre <viniciusjl.gnu@gmail.com>
> 
> > (And in general, I think moving things to ELPA generally only makes
> > sense if it's a package that somebody wants to work on a lot outside of
> > the Emacs release schedule -- not because it's an outdated package.)
> 
> Not sure I agree with that principle -- we'd have to be awfully careful with 
> what we allow in Emacs then, because once in, it can never be removed, even 
> if it didn't really belong in the tree in the first place.

No, we can move such packages to lisp/obsolete/, and after some time
there delete them.  It happened in the past.