bug#50989: 28.0.60; nobreak-char-display in Eldoc buffers

[Eli Zaretskii]

> From: João Távora <joaotavora@gmail.com>
> Date: Sun, 3 Oct 2021 12:12:23 +0100
> Cc: Augusto Stoffel <arstoffel@gmail.com>, 50989@debbugs.gnu.org
> 
> > Why does the server return these NBSP characters?  Would it make sense
> > to automatically convert them to spaces on input?
> 
> That's also sweeping it under the rug.

Well, we have no control on what the server does, so we cannot do
better.  But I do wonder why they do it at all.