neutronclient swallows status reason error

[Thomas Herve]

I recently encountered the bug about header size when using keystone v3. It was particularly painful to debug because there is no message in the server logs, and the client displays '400-{'message': ''}'. I had to use the curl command which displayed the error message properly.

neutronclient should be able to retrieve the status reason and return it to the user when something like that happens.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/77559

[Openstack Gerrit (openstack-gerrit)]

Reviewed: https://review.openstack.org/77559
Committed: https://git.openstack.org/cgit/openstack/python-neutronclient/commit/?id=f1a2d5eb10b29384769a0d65c9a134e8748a648b
Submitter: Jenkins
Branch: master

commit f1a2d5eb10b29384769a0d65c9a134e8748a648b
Author: Thomas Herve <email address hidden>
Date: Mon Mar 3 11:37:37 2014 +0100

    Return response status reason on error

    Upon server error, return the status reason if the body is empty, to
    help debug server issues.

    Change-Id: I29aef075081965bb8ecacf45a166ca9dbd4cbb8d
    Closes-Bug: #1287110