Updated openstack/openstack
Project: openstack/python-cinderclient  a2b9bdd36c318ad6a5481f4fae789e5a7f8222dd
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Discrepancy between README.rst and cinder help

1) --version in README should be --os-volume-api-version

2) CINDER_URL should be OS_AUTH_URL

Change-Id: I409634f3025463f2ae9419ddd0d99fa50554a04d
Closes-Bug: 1251385