bug#68244: hash-table improvements

[Eli Zaretskii]

> From: Mattias Engdegård <mattias.engdegard@gmail.com>
> Date: Sat, 24 Feb 2024 11:53:32 +0100
> Cc: acorallo@gnu.org,
>  gerd.moellmann@gmail.com,
>  dmitry@gutov.dev,
>  68244@debbugs.gnu.org,
>  monnier@iro.umontreal.ca,
>  stefankangas@gmail.com
> 
> 24 feb. 2024 kl. 11.30 skrev Eli Zaretskii <eliz@gnu.org>:
> 
> > Yes, see Dmitry's message up-thread, which named the offending
> > package.  I've looked at it, and verified that it really does use this
> > paradigm.
> 
> Thank you, somehow I didn't get that mail. Perhaps he fell out of grace with 
> Gmail.
> 
> > I'm fine with adding to NEWS the text that suggests obarray-make, but
> > the text I added has to stay, since the make-vector method evidently
> > exists in the wild.
> 
> Right, it now suggests obarray-make and makes it clear that anything other 
> than 0-filled vectors already was wrong.

Not exactly what I asked to do; fixed.