bug#74400: 31.0.50; tramp-loaddefs.elc suddenly owned by root

[Eli Zaretskii <eliz@gnu.org>]

> From: Michael Albinus <michael.albinus@gmx.de>
> Cc: Eli Zaretskii <eliz@gnu.org>,  74400-done@debbugs.gnu.org
> Date: Mon, 18 Nov 2024 09:37:51 +0100
> 
> Michael Heerdegen <michael_heerdegen@web.de> writes:
> 
> Hi Michael,
> 
> >> I try to recover everything I can find in my memory.
> >
> > No idea to be honest.  Let's not waste time and assume I made nonsense.
> > I can reopen in case it comes back.
> 
> Wait, I could reproduce the problem:
> 
> --8<---------------cut here---------------start------------->8---
> # rm lisp/net/tramp-loaddefs.elc
> # sudo make install
> # ll lisp/net/*loaddefs*
> -rw-rw----+ 1 albinus albinus 110234 Nov 17 17:37 lisp/net/tramp-loaddefs.el
> -rw-r--r--+ 1 root    root    122088 Nov 18 09:27 lisp/net/tramp-loaddefs.elc
> --8<---------------cut here---------------end--------------->8---

But note that here the time stamps of the two files are very diferent,
which seems to indicate that tramp-loaddefs.el was somehow
byte-compiled as part of "make install".  Whereas in the OP, we saw a
different picture:

|  /home/micha/software/emacs/lisp/net:
|  drwxr-xr-x  2 micha micha 4,0K Nov 16 17:03 .
|  drwxr-xr-x 28 micha micha  20K Nov 16 17:03 ..
|  [...]
|  -rw-rw-r--  1 micha micha 108K Nov 15 17:01 tramp-loaddefs.el
|  -rw-r--r--  1 root  root  120K Nov 15 17:01 tramp-loaddefs.elc

Look, ma: same time stamp.  Which seems to indicate they were both
produced at the same time, so probably by the same command.