bug#20258: 24.5; format-time-string miscounting of multibyte characters

[Eli Zaretskii]

> From: Lars Ingebrigtsen <larsi@gnus.org>
> Cc: schwab@suse.de,  20258@debbugs.gnu.org,  stefan@marxist.se,
>   gunnar.horrigmo@usit.uio.no
> Date: Mon, 30 Sep 2019 16:12:38 +0200
> 
> > I would mention "non-ASCII characters" here in some way, not just the
> > locale, to make this more explicit.
> 
> I was pondering whether any users had a locale of *.UTF-16.

Unlikely.

> But perhaps saying something like "especially with non-ASCII characters"
> wouldn't be too misleading?

Yes, that's what I had in mind.