bug#68244: hash-table improvements

[Dmitry Gutov]

On 24/02/2024 13:03, Eli Zaretskii wrote:
> > > 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.

Thanks.

We can't simply recommend using obarray-make instead to third-party code 
because it usually targets some older Emacs releases as well.