Subject: match-beginning: return nil if search failed

From: Andreas Röhler <[email-masked]>
Date: Tue, 31 Jul 2018 07:59:06 +0200

match-beginning tells: Return value is undefined if the last search failed.

Consider it a gain if it returns nil when failing.

Thanks,
Andreas
GNU Emacs 27.0.50 (build 1, i686-pc-linux-gnu, GTK+ Version 3.14.5) of 
2018-05-29