bug#69345: 29.2; Quick Help shows wrong key binding for "kill region"

[Eli Zaretskii]

> Cc: 69345@debbugs.gnu.org
> From: Philip Kaludercic <philipk@posteo.net>
> Date: Sat, 24 Feb 2024 10:02:37 +0000
> 
> Gómez Ocaña Pablo <pablo.gomezo@uah.es> writes:
> 
> > The command C-h C-q (help-quick-toggle) shows a list of popular
> > commands, but the key binding for "kill region" is wrong: it shows M-w,
> > but it should be C-w.
> 
> The issue is not really that the binding is wrong, since these are
> determined using `where-is', but that the description isn't matching the
> chosen command `kill-ring-save'.
> 
> So we can either fix it by using the "right" command
> 
> or by changing the description:

I went with the former, since the section's name is "Mark & Kill", and
M-w isn't a kill command.