Comment 1 for bug 1645918

Reviewed: https://review.openstack.org/409140
Committed: https://git.openstack.org/cgit/openstack/glance/commit/?id=06c4313ec0ed043970a60cbbc463f3dcad71f6f4
Submitter: Jenkins
Branch: master

commit 06c4313ec0ed043970a60cbbc463f3dcad71f6f4
Author: Dirk Mueller <email address hidden>
Date: Fri Dec 9 14:11:33 2016 +0100

    Adjust test suite for new psutil versions

    psutil 2.x and above has a lot of API changes as described in:
    https://github.com/giampaolo/psutil/blob/master/HISTORY.rst

    So we should work correctly with both old and new psutil
    versions by using a version check and use the correct
    method/attributes. This allows to eventually unlift the version
    cap that starts to hurt.

    Related-Bug: 1645918
    Change-Id: I6be775e83876271012f6b7a777ea2b5cc3a008f6