bug#21315: 25.0.50; doc of `kill-ring-save', `copy-region-as-kill' - bad

[Eli Zaretskii]

> From: Juri Linkov <juri@linkov.net>
> Date: Sun, 06 Dec 2015 01:12:32 +0200
> Cc: 21315@debbugs.gnu.org
> 
> > ping
> >
> > At least make clear that what is said about REGION is only
> > for calls from Lisp.  REGION is always non-nil when used
> > interactively.
> 
> Maybe REGION should be non-nil only when used on a non-contiguous
> (rectangular) region?

How do you see that?