Logsys: Change logsys syslog_priority priority
LibQB adds default "*" syslog filter so we have to set syslog_priority
as low as possible so filters applied later in
_logsys_config_apply_per_file takes effect.
Signed-off-by: Jan Friesse <jfriesse@redhat.com>
(cherry picked from commit 8b6bd86a55b8bda9f3a8ff67bdff908263976fa3)