bug#57434: 28.1.91; Terminal Emacs Mac OS flickering.

[Eli Zaretskii]

> From: Gerd Möllmann <gerd.moellmann@gmail.com>
> Cc: kuragin@google.com,  57434@debbugs.gnu.org
> Date: Thu, 01 Sep 2022 10:56:35 +0200
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > I'm not sure I understand: what would the user send to the terminal in
> > those hooks?
> 
> They would send the begin-update/end-update control sequences.  That
> would be ESC P <something> in the one proposal I mentioned.
> 
> It would of course be better if we could do that automatically.

Exactly.  I don't think it's reasonable to expect users to figure out
what and when to send if we cannot figure that out ourselves.