bug#56393: Actually fix the long lines display bug

[Eli Zaretskii]

> From: Stefan Kangas <stefan@marxist.se>
> Date: Wed, 6 Jul 2022 16:37:26 +0200
> Cc: Eli Zaretskii <eliz@gnu.org>, Lars Ingebrigtsen <larsi@gnus.org>, 
> 56393@debbugs.gnu.org
> 
> I'm saying that Eli is correct in saying that we should not treat it
> as the full and complete solution.

That's not what I said.  I said if we think this will provide a
complete solution, we should strive to make it that.