Trying to run test_integration leads to: TypeError: must be string, not int

[Thomas Bechtold]

Running the integration tests manually in a virtualenv leads to:

(py27)tom@basilikum:~/devel/openstack-dev/pbr$ PROJECTS="openstack/nova openstack/cinder" REPODIR=/home/tom/devel/openstack/ PBR_INTEGRATION=1 python -mtesttools.run pbr.tests.test_integration.TestIntegration.test_integration
Tests running...
======================================================================
ERROR: pbr.tests.test_integration.TestIntegration.test_integration
----------------------------------------------------------------------
Traceback (most recent call last):
  File "pbr/tests/test_integration.py", line 61, in setUp
    600)
  File "/home/tom/devel/openstack-dev/pbr/.tox/py27/lib64/python2.7/os.py", line 473, in __setitem__
    putenv(key, item)
TypeError: must be string, not int

Ran 1 test in 0.001s
FAILED (failures=1)