Bug#777746: xfce4-power-manager: infinite loop of battery charging/battery full popup messages

[Nathaniel Morck Foley-Beaver]

Upstream bug report here:

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=777746

More background information here:

https://superuser.com/questions/1433936/power-manager-notifications-repeating-incessantly-power-problems