bug#58464: 28.1; browse-url-emacs doesn't work for local files on Windows

[Eli Zaretskii]

> From: Lars Ingebrigtsen <larsi@gnus.org>
> Cc: pquessev@gmail.com,  58464@debbugs.gnu.org, Paul Eggert
>  <eggert@cs.ucla.edu>
> Date: Thu, 13 Oct 2022 13:30:39 +0200
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > Thanks.  But this part:
> >
> >   -  if (NILP (handler) && !NILP (visit) && current_buffer->modtime.tv_nsec 
> > < 0)
> >   +  if (save_errno != 0)
> >
> > might cause us signal an error when VISIT is nil, something that
> > didn't happen before.
> >
> > (I also am not sure it is 100% reliable to rely on save_errno being
> > non-zero whenever we encounter an error, especially in the
> > file-handlers case.)
> 
> That's Paul's change -- added to the CCs.

Oops, sorry about that.