Updated openstack/openstack
Project: openstack-dev/devstack  aec8cd4e50112345c2aa415ff64733057d889547
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Improve log level conf for Sahara

* set verbose to True
* set debug to $ENABLE_DEBUG_LOG_LEVEL

Change-Id: I229f6ed7c13caf7bea9c090de43ede4ed9ea1536