Handle signals in non-interactive sessions.
Handle signals in non-interactive sessions.

Signed-off-by: Pierre Gleize <edbcfd4a5afe55a49d398e5f784aa55a4d39a488@gmail.com>

hallyn/lxd,atxwebs/lxd,hallyn/lxd,hallyn/lxd,stgraber/lxd,lxc/lxd,atxwebs/lxd,stgraber/lxd,hallyn/lxd,lxc/lxd,stgraber/lxd,stgraber/lxd,hallyn/lxd,stgraber/lxd,stgraber/lxd,lxc/lxd,atxwebs/lxd,stgraber/lxd,lxc/lxd,atxwebs/lxd,hallyn/lxd,lxc/lxd,lxc/lxd,lxc/lxd