Updated openstack/openstack
Project: openstack/keystone  695c02403fe015a84df3701d86a3ee28ea8c7fc5
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Document priority level on Keystone notifications

In the notification docs, we never explicitly say that notification are
always set at the INFO level. This priority level is not configurable
by the end user through the keystone.conf and this change documents that
behavior in the event_notifications.rst docs.

Change-Id: I293db2b69a73a1b56fe0539e183ea13b87ce639a