bug#46859: 28.0.50; [PATCH]: Add option to truncate long lines in xref.el

[Eli Zaretskii]

> Date: Thu, 04 Mar 2021 17:35:42 +0000
> From: Gregory Heytings <gregory@heytings.org>
> cc: 46859@debbugs.gnu.org
> 
> > Not 'best, 'exact.  Did you try 'exact?  It should have worked, barring 
> > any bugs.
> 
> Sorry for mixing things up.  Just tried 'exact, it works, it's slow (but 
> not horribly slow: 1.2 seconds on that 25 MB file), but it doesn't give 
> the correct answer alas, it's about ~1000 characters away from the correct 
> position.

Sounds like a bug, I'd appreciate a bug report with the details
(including the file, if you can share it).

Thanks.