man: expand description of lingering and KillUserProcesses setting
authorZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
Sat, 9 Apr 2016 20:22:08 +0000 (16:22 -0400)
committerZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
Thu, 21 Apr 2016 04:21:32 +0000 (00:21 -0400)
commit65eb37f8fcf0c82db0d9b600bb804adf7ead0327
tree95f32f9d92b307ea26109ea1464703eb024788a0
parent4eac7f5cccf60b8184173254c7dbff5d9710c57c
man: expand description of lingering and KillUserProcesses setting

The description in the man page was wrong, KillUserProcesses does
not kill all processes of the user. Describe what the setting
does, and also add links between the relavant sections of the
manual.

Also, add an extensive example which shows how to launch screen
in the background.
man/loginctl.xml
man/logind.conf.xml
man/systemd-run.xml