Comment 5 for bug 1693466

Reviewed: https://review.openstack.org/469351
Committed: https://git.openstack.org/cgit/openstack/trove/commit/?id=650235435d599a2151cdaf8a46c91651fa6d7a08
Submitter: Jenkins
Branch: master

commit 650235435d599a2151cdaf8a46c91651fa6d7a08
Author: zhanggang <email address hidden>
Date: Wed May 31 02:28:30 2017 -0400

    Log the right attached configuration id

    Method 'rolling_configuration_update' in trove/cluster/models.py.
    It allow re-applying the same configuration to an instance.In if code
    block, if the instance does not attach any configuration or it has
    attached the configuration that the parameter passed, then do attach
    thing. "else" block means the instance has attached another config,
    should use "instance.configuration.id" instead of "configuration_id",
    one is a attached configuration, one is a wanted configuration, and
    they are not the same.
    Besides, fix a spelling mistake in trove/instance/models.py

    Change-Id: I4b6fb338de611ce39a8173dcf4b6e17714c380b9
    Closes-Bug: 1693466