bug#36649: 27.0.50; pure space and pdumper

[Eli Zaretskii]

> Cc: rpluim@gmail.com, stefan@marxist.se, schwab@linux-m68k.org,
>  monnier@iro.umontreal.ca, pipcet@gmail.com, 36649@debbugs.gnu.org,
>  akrl@sdf.org
> From: Paul Eggert <eggert@cs.ucla.edu>
> Date: Mon, 17 May 2021 01:43:31 -0700
> 
> I doubt whether it's worth spending much time debugging the problem, 
> since nobody uses unexec on GNU/Linux any more.

Since we decided not to remove unexec in Emacs 28, we do need to keep
the unexec configuration working.  So I find it unfortunate that you
keep saying that, because the result is a direct contradiction of what
we decided.