Updated openstack/openstack
Project: openstack/python-cinderclient  d6f4ab3c9630262c5c6b0c5562db4bae50aab2d5

Fixed typos found by RETF rules

Rules are available at
https://en.wikipedia.org/wiki/Wikipedia:AutoWikiBrowser/Typos

Change-Id: I8de0631346b703870ce8ebe9ce728a0360f1ba7f