bug#38453: Error out if dumping while interactive?

[Eli Zaretskii]

> From: Philipp Stephani <p.stephani2@gmail.com>
> Date: Mon, 23 Dec 2019 20:51:55 +0100
> Cc: 38453-done@debbugs.gnu.org
> 
> > AFAICT Fdump_emacs explicitly checks for this:
> >
> > >  if (! noninteractive)
> > >    error ("Dumping Emacs works only in batch mode");
> >
> > Maybe Fdump_emacs_portable should do the same… or maybe the check should
> > be moved somewhere in loadup.el?
> 
> Sounds reasonable, I've now fixed with with commit e7edba42c8.

I think it's misguided, since we intend to lift this limitation in
some future release.