[2017.7.5] profitbrick failures py2/py3

[Ch3LL]

Seeing these failures:

10:42:49    -> integration.cloud.providers.test_profitbricks.ProfitBricksTest.test_instance  
10:42:49        Traceback (most recent call last):
10:42:49          File "/testing/tests/integration/cloud/providers/test_profitbricks.py", line 108, in test_instance
10:42:49            '-p profitbricks-test {0}'.format(INSTANCE_NAME), timeout=500
10:42:49        AssertionError: 'CLOUD-TEST-8R7MQN' not found in []
10:42:49    .............................................................................
10:42:49    -> integration.cloud.providers.test_profitbricks.ProfitBricksTest.test_list_images  
10:42:49        Traceback (most recent call last):
10:42:49          File "/testing/tests/integration/cloud/providers/test_profitbricks.py", line 96, in test_list_images
10:42:49            [i.strip() for i in image_list]
10:42:49        AssertionError: 'Ubuntu-16.04-LTS-server-2016-10-06' not found in ['profitbricks-config:', '----------']

I believe this is related to this PR: saltstack/salt#46265