cinderclient readme page exist a mistake

[George Zhang]

just here :

usage: cinder [--debug] [--os-username <auth-user-name>]
              [--os-password <auth-password>]
              [--os-tenant-name <auth-tenant-name>] [--os-auth-url <auth-url>]
              [--os-region-name <region-name>] [--service-type <service-type>]
              [--service-name <service-name>]
              [--volume-service-name <volume-service-name>]
              [--endpoint-type <endpoint-type>]
              [--os-volume-api-version <compute-api-ver>]
              [--os-cacert <ca-certificate>] [--retries <retries>]
              <subcommand> ...

-os-volume-api-version <compute-api-ver>

I think here is volume-api-version rather than compute-api-ver.

a tiny mistake.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/414924

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/414924
Committed: https://git.openstack.org/cgit/openstack/python-cinderclient/commit/?id=82181f0bf5c6abe57aedfd54d9a28e2a41ccd37a
Submitter: Jenkins
Branch: master

commit 82181f0bf5c6abe57aedfd54d9a28e2a41ccd37a
Author: venkatamahesh <email address hidden>
Date: Mon Dec 26 15:40:38 2016 +0530

    Fix the optional argument of cinder api

    Change-Id: I10bd6e61eb8b41591df6b9609cf24e11ae37f2dc
    Closes-Bug: #1652573

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/python-cinderclient 1.11.0 release.