Updated openstack/openstack
Project: openstack/ceilometer  72857ef4f9662aed2a2a10a101bb88c529e98bae
null
Exit expirer earlier if db-ttl is disabled

Now, the ceilometer-expirer exit without doing the backend db request if
the db-ttl is disabled.

Fixes bug #1270760

Change-Id: I49580be14cd932317ff30070aeec391ef456712e