bug#75017: 31.0.50; Untrusted user lisp files

[Eli Zaretskii]

> From: Stefan Kangas <stefankangas@gmail.com>
> Date: Sun, 22 Dec 2024 17:36:15 +0000
> Cc: jm@pub.pink, 75017@debbugs.gnu.org, acorallo@gnu.org
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> >> From: Stefan Monnier <monnier@iro.umontreal.ca>
> >> Cc: john muhl <jm@pub.pink>,  75017@debbugs.gnu.org,  Eli Zaretskii
> >>  <eliz@gnu.org>,  Andrea Corallo <acorallo@gnu.org>
> >> Date: Sat, 21 Dec 2024 22:16:05 -0500
> >>
> >> > Maybe we should install something like the below?
> >>
> >> Fine by me, but I think this should be added via a new
> >> `trusted-content-function(s)` and added buffer-locally only in
> >> elisp-mode buffers.
> >
> > Sorry, but this is slippery slope.  For starters, no one said that
> > site-run-file is installed by a sysadmin -- that is only so on certain
> > systems.  For example, MS-Windows is generally not in that category.
> 
> It doesn't matter who can edit it.  `site-run-file` is already trusted,
> since it is loaded at run-time before `user-init-file`.

It is loaded if it is there.  On my system, there's no such file, and
I don't expect to have it.  So if such a file somehow materializes
there, I want to know, pronto.