bug#54381: [External] : bug#54381: 29.0.50; Automatically load custom-file

[Drew Adams]

> so if it's already loaded, it won't be reloaded.
> So perhaps this is feasible after all?

And yet you rejected that behavior when I proposed
it in emacs-devel.

Continue to give users control over loading
`custom-file'.  And give them the possibility to
have it loaded automatically after their init file.

There are lots of different scenarios, however.
See the two long emacs-devel threads about this
question.

https://lists.gnu.org/archive/html/emacs-devel/2022-01/msg00284.html

https://lists.gnu.org/archive/html/emacs-devel/2022-01/msg00386.html