bug#67600: [PATCH] Add dashes to 'thing-at-point-email-regexp'

[Eli Zaretskii]

> From: Philip Kaludercic <philipk@posteo.net>
> Cc: 67600@debbugs.gnu.org
> Date: Tue, 12 Dec 2023 07:21:18 +0000
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> >> From: Philip Kaludercic <philipk@posteo.net>
> >> Date: Sun, 03 Dec 2023 12:52:04 +0000
> >> 
> >> I noticed this recently when trying to extract a link to an mailing list
> >> of mine hosted on SourceHut.
> >
> > Looks like you are adding slashes, not dashes?
> 
> Of course, my bad:

Thanks.

My bother here is that this could cause false positives whereby
thing-at-point would recognize file names with slashes as email
addresses.  Because otherwise I don't understand why the slash was
omitted in the first place.  Can we somehow make sure this won't
happen?