fsousaged: make shutdown and reboot commands configurable
fsousaged: make shutdown and reboot commands configurable

We can't rely on PATH being correct when being activated via dbus.
This means we better use absolute paths to the commands to
execute.

This adds two new config options in [fsousage]: shutdown_command and
reboot_command. If not configured they default to '/sbin/shutdown -h now'
and '/sbin/shutdown -r now'.

Signed-off-by: Klaus Kurzmann <c477880af38a6ff08996eb4cfb8b89c9ead729de@fluxnetz.de>

slyon/debian-fso-deviced,slyon/debian-fso-usaged,slyon/debian-fso-deviced,slyon/debian-fso-usaged