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

[Eli Zaretskii]

> From: Mike Kupfer <mkupfer@alum.berkeley.edu>
> cc: 33450@debbugs.gnu.org
> Date: Wed, 21 Nov 2018 06:50:51 -0800
> 
> $ ls
> foo.tar.gz
> $ tar tfz foo.tar.gz 
> a
> b
> c
> # uncompress foo.tar.gz with 'Z'
> $ ls
> a  b  c  foo.tar.gz
> $ 
> 
> Based on the NEWS entry, a directory "foo" should have been created and
> populated with a, b, and c.  But that's not what happens, at least not
> on my GNU/Linux system (Debian 9).

Thanks, I modified the text in the Git repository to make it more
accurate; please take a look.