bug#33781: tramp tests abort on hydra

[Glenn Morris]

Michael Albinus wrote:

> This doesn't work, if you need the initial value of the user option in
> order to compute a new value:
>
> --8<---------------cut here---------------start------------->8---
> # emacs -Q --eval '(customize-set-variable (quote tramp-remote-path) 
> (add-to-list (quote tramp-remote-path) (quote tramp-own-remote-path)))'
>
> => customize-set-variable: Symbol's value as variable is void: 
> tramp-remote-path
> --8<---------------cut here---------------end--------------->8---

This is a generic issue. Personally I don't see it as justification for
autoloading a new defcustom. Removing long-established autoloads from
existing variables is a different story.