bug#66743: 30.0.50; Crash when dumping reftex

[Eli Zaretskii]

> From: Ihor Radchenko <yantar92@posteo.net>
> Cc: gerd.moellmann@gmail.com, stefankangas@gmail.com, 66743@debbugs.gnu.org
> Date: Fri, 27 Oct 2023 11:09:40 +0000
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> >> If you say that using `error' instead of `emacs_abort' is safe, I will
> >> just follow. I expect that you know these details well.
> >
> > I think it's safe, since we already do that in other places in
> > pdumper.c.
> 
> Then, you may consider merging my v3 patch.

Done, after some minor cleanup.

Thanks.