bug#39491: 28.0.50; two bugs in battery-upower

[Eli Zaretskii]

> From: Evgeny Zajcev <lg.zevlg@gmail.com>
> Date: Tue, 26 May 2020 19:42:29 +0300
> Cc: 39491@debbugs.gnu.org, rms@gnu.org, 
>       Stefan Monnier <monnier@iro.umontreal.ca>
> 
> I will get spare time very soon, and will come back to this. I did not forget 
> about it :)

Thanks!