Make sensu-client log to file
Make sensu-client log to file

This patch sets sensu-client service in container to log to file
consistently with other docker services.

Change-Id: Ic8929326cd73c4bc4515b592fed4826b9c1d516a

dprince/tripleo-heat-templates,openstack/tripleo-heat-templates,dprince/tripleo-heat-templates,openstack/tripleo-heat-templates