Updated openstack/openstack
Project: openstack/heat  ea117e51b7ae29cc127db89d85cba7090854b790

TestRandomString was calling the wrong setUp

Just incorrect usage of super(). This was bypassing HeatTestCase.setUp()
and causing extra logs to be printed.

Change-Id: I6f77cce53b971b14637e8705c3f73993ac458550
Partial-bug: 1281226