Updated openstack/openstack
Project: openstack/keystone  343cd9f840c1da9b15d7d55d3cb98ff910a79a70

Comments to docstrings for notification emit methods

Update the comments to docstrings for the assignment and identity
notification emitting methods.

Change-Id: I1a6297de4f93ffec637978232412fa095e8e12b1
bp: non-persistent-tokens