bug#33450: 26.1.90; NEWS entry for dired 'Z' is inaccurate

[Eli Zaretskii]

> From: Glenn Morris <rgm@gnu.org>
> Cc: mkupfer@alum.berkeley.edu,  33450@debbugs.gnu.org
> Date: Thu, 22 Nov 2018 13:18:54 -0500
> 
> Eli Zaretskii wrote:
> 
> >> And indeed NEWS.25 says "The command 'dired-do-compress', bound to 'Z',
> >> now can compress directories", so NEWS.26 is duplicating that.
> >
> > I see no harm in that, as the NEWS.26 text is more complete and
> > accurate (it talks about decompression as well, for starters).
> 
> I find this odd.
> 95% of the 'Z' NEWS.26 entry is true in Emacs 25.1 (by experiment).
> The only thing that's different in 26.1 is the .tgz treatment.
> This hardly seems NEWS-worthy.
> 
> If you for some reason want to keep the expanded entry in NEWS.26, it
> should at least be corrected to say "This change was actually made in
> Emacs 25.1, but the NEWS entry was too terse" (or however you want to
> justfiy re-visiting it). It is incorrect to say "This change was
> actually made in Emacs 26.1".
> 
> But I think it would be better to move your description from NEWS to the
> doc string.

Done.