Comment 1 for bug 1530026

This seems to be a missing PBR requirement.

Full stack trace:
2015-12-29 17:09:24.767 | ERROR:root:Error parsing
2015-12-29 17:09:24.767 | Traceback (most recent call last):
2015-12-29 17:09:24.767 | File "/usr/local/lib/python2.7/dist-packages/pbr/core.py", line 109, in pbr
2015-12-29 17:09:24.767 | attrs = util.cfg_to_args(path)
2015-12-29 17:09:24.767 | File "/usr/local/lib/python2.7/dist-packages/pbr/util.py", line 261, in cfg_to_args
2015-12-29 17:09:24.767 | wrap_commands(kwargs)
2015-12-29 17:09:24.767 | File "/usr/local/lib/python2.7/dist-packages/pbr/util.py", line 482, in wrap_commands
2015-12-29 17:09:24.767 | for cmd, _ in dist.get_command_list():
2015-12-29 17:09:24.767 | File "/usr/local/lib/python2.7/dist-packages/setuptools/dist.py", line 446, in get_command_list
2015-12-29 17:09:24.767 | cmdclass = ep.resolve()
2015-12-29 17:09:24.767 | File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2386, in resolve
2015-12-29 17:09:24.767 | module = __import__(self.module_name, fromlist=['__name__'], level=0)
2015-12-29 17:09:24.767 | File "/usr/local/lib/python2.7/dist-packages/pbr/testr_command.py", line 47, in <module>
2015-12-29 17:09:24.767 | from testrepository import commands
2015-12-29 17:09:24.767 | ImportError: No module named testrepository
2015-12-29 17:09:24.767 | error in setup command: Error parsing /opt/stack/new/keystone/setup.cfg: ImportError: No module named testrepository
2015-12-29 17:09:24.767 |
2015-12-29 17:09:24.767 | ----------------------------------------
2015-12-29 17:09:24.767 | Command "python setup.py egg_info" failed with error code 1 in /opt/stack/new/keystone