Comment 3 for bug 1645761

Reviewed: https://review.openstack.org/404286
Committed: https://git.openstack.org/cgit/openstack/ospurge/commit/?id=712bb2bce5acb01063bc186c304ca0e1b377bd16
Submitter: Jenkins
Branch: master

commit 712bb2bce5acb01063bc186c304ca0e1b377bd16
Author: zarrouk <email address hidden>
Date: Tue Nov 29 16:40:03 2016 +0100

    Use unicode formatting

    The openstack clients return unicode strings as ressource names.
    In python2.7, we need to use unicode encoding when dealing with string
    formatting otherwise it is treated as python2 str and we try to cast
    a unicode string into an str.
    In python 3 prefixing a string with u has no effect and is supported
    and considered as a python3 str which are natively unicode strings.

    Change-Id: Id77ed2f28fd206b900a0e273fece244517e55505
    Closes-Bug: #1645761