Comment 22 for bug 1520159

Reviewed: https://review.openstack.org/434895
Committed: https://git.openstack.org/cgit/openstack/cinder/commit/?id=dd495b880d0333b8a8a8fa21be807d456375d5c9
Submitter: Jenkins
Branch: master

commit dd495b880d0333b8a8a8fa21be807d456375d5c9
Author: poojajadhav <email address hidden>
Date: Wed Jan 25 21:07:42 2017 +0530

    Extracted HTTP response codes to constants

    There are several places in the source code where HTTP response
    codes are used as numeric values.

    Status codes 101, 200, 201, 202, 400, 401, 403, 404, 409, 413, 422, 424
    and 500 under tests/unit/volume/drivers are replaced with symbolic
    constants from six.moves.http_client thus improves code readability.
    More patches will be submitted to address other status codes.

    Partial-Bug: #1520159
    Change-Id: I491bd9a6e09d39626e3f0c8fa9a151fe1927ee3b