bug#14816: 24.3.50.1; ispell remember position, feature request

[Eli Zaretskii]

> Cc: 14816@debbugs.gnu.org
> From: Lars Ingebrigtsen <larsi@gnus.org>
> Date: Tue, 10 May 2022 16:24:44 +0200
> 
> Andreas Röhler <andreas.roehler@easy-emacs.de> writes:
> 
> > When ispell process ends, user might want to jump to last position
> > where checking was done.
> 
> I've now fixed this in Emacs 29 -- but instead of adding a special
> command/user option, I just made it push the location of the final word
> to the mark ring, so that `C-x C-x' can skip back to it.

This changeset changes the form of the return value of
ispell-process-line, so shouldn't that at least appear in
incompatible changes in NEWS (if not done in some more compatible
way)?