Updated openstack/openstack
Project: openstack/python-cinderclient  0d2bf657ae5271a01e9ec84d379d17910b263b7e

Update help strings for cinder client

Make text consistent and clear.
Add periods to end of sentences.
Adjust test suite for change

Closes-Bug: #1275881

Change-Id: I1dfde51636e8dc4b42e4c4810c27c1c4ac513d82