Comment 5 for bug 1476114

reproduced in master:
root@zhenyu-dev:/opt/stack/nova# git log
commit 1a643bf934e5b113a61b0dc9f812e66f55f19769
Merge: d966d33 fb9a0b8
Author: Jenkins <email address hidden>
Date: Wed May 17 00:26:21 2017 +0000

    Merge "Make NovaException format errors fatal for tests"

Nova API log
http://paste.openstack.org/show/609733/