bug#24902: 25.1; C-x = for Unicode

[Eli Zaretskii]

> From: Lars Ingebrigtsen <larsi@gnus.org>
> Date: Wed, 26 Jan 2022 14:10:40 +0100
> Cc: Ulrich Windl <Ulrich.Windl@rz.uni-regensburg.de>, 24902@debbugs.gnu.org
> 
> Char: o (111, #o157, #x6f) point=1913 of 3222 (59%) <1402-3223> column=42
> 
> And I have absolutely no idea what the stuff in <> is supposed to tell
> me

It shows the restriction, if any.