fix linting

Author: stdevel

roles/client/molecule/default/tests/test_default.py

@@ -1,6 +1,8 @@
 """
 Molecule unit tests
 """
+from __future__ import absolute_import, division, print_function
+__metaclass__ = type
 import os
 import testinfra.utils.ansible_runner
 

roles/server/molecule/default/tests/test_default.py

@@ -1,6 +1,8 @@
 """
 Unit tests
 """
+from __future__ import absolute_import, division, print_function
+__metaclass__ = type
 import os
 import testinfra.utils.ansible_runner
 

roles/storage/molecule/default/tests/test_default.py

@@ -1,6 +1,8 @@
 """
 Molecule unit tests
 """
+from __future__ import absolute_import, division, print_function
+__metaclass__ = type
 import os
 import testinfra.utils.ansible_runner