Updated openstack/openstack
Project: openstack/python-keystoneclient  040fc814463d7789ee514425398d9b29af6217c9
null
Improve help strings

Improve consistency of help strings:
* Add "." at end of help strings and descriptions.
* Improve descriptions.
* Fix capitalization.

Change-Id: I291acea95871734a30192c2e4564267326f9c0a7