bug#55386: 29.0.50; check-declare-directory doesn't work on Windows

[Eli Zaretskii]

> From: Lars Ingebrigtsen <larsi@gnus.org>
> Cc: yasu@utahime.org,  55386@debbugs.gnu.org
> Date: Sat, 14 May 2022 17:36:23 +0200
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> >> But the change looks fine to me in any case.
> >
> > I can install now if you are okay with the above.
> 
> Sure, go ahead.

Installed.