Use self._logger as property not a method
Use self._logger as property not a method

Change-Id: Ie8819d067d6bfa0b4d2176a77e18dd0c7e937b4b
Signed-off-by: Martin Sivak <361315d85e190db42db95eaca639c05fa7701076@redhat.com>

oVirt/ovirt-hosted-engine-ha,oVirt/ovirt-hosted-engine-ha,oVirt/ovirt-hosted-engine-ha,oVirt/ovirt-hosted-engine-ha