bug#22975: 25.0.92; CANNOT_DUMP build can't start in tty mode

[Eli Zaretskii]

> From: Stefan Monnier <monnier@IRO.UMontreal.CA>
> Cc: raeburn@raeburn.org, 22975@debbugs.gnu.org
> Date: Tue, 15 Mar 2016 15:31:30 -0400
> 
> Most of Emacs's code is written under the assumption that all of
> loadup.el is already loaded, so we should run as little code as possible
> during loadup.el itself.

We do.  What runs then is 'load', which announces the loaded files, and
that's all.