bug#34535: 27.0.50; emacs -nw: while-no-input + sit-for + <KEY> => Quit

[Eli Zaretskii]

> From: Michael Heerdegen <michael_heerdegen@web.de>
> Cc: monnier@iro.umontreal.ca,  34535@debbugs.gnu.org
> Date: Tue, 26 Feb 2019 18:27:33 +0100
> 
> This seems only to happen after several hours of suspended ram sleep.  I
> just waited this time to see if it ends, and after ~10 seconds, CPU
> usage went to nearly zero and everything was good.  I'm not sure if
> Emacs is to blame for anything, though I didn't see this before.  When
> it happens the next time, I'll have a look if other programs are
> responding.

OK, thanks.  I guess I will soon push the change after all.