Cannot list servers while --user specified for "openstack server list"

[xiexs]

There is nothing returned if the option --user specified for the OSC "openstack server list".

And furthermore, if a non-existent user specified, the command will complain of following error:
 $ openstack server list --user unexist_user
No tenant with a name or ID of 'unexist_user' exists.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/242326

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/242326
Committed: https://git.openstack.org/cgit/openstack/python-openstackclient/commit/?id=db46666589d7a0c8097a86735d8821f313c54412
Submitter: Jenkins
Branch: master

commit db46666589d7a0c8097a86735d8821f313c54412
Author: xiexs <email address hidden>
Date: Fri Nov 6 09:16:43 2015 -0500

    Fix a bug about "openstack server list --user"

    Fix the bug to get the right user id.

    Change-Id: Ie60a719a40654802772884ff94271b37aa061ac3
    Closes-Bug: #1513701