Insert paths in the second position of sys.path

http://stackoverflow.com/a/10097543/4804690

Additionally, avoid using platform-specific '/' and '..'.

roles/openshift_master_facts/test/openshift_master_facts_default_predicates_tests.py

@@ -5,7 +5,7 @@ import sys
 from ansible.errors import AnsibleError
 from nose.tools import raises, assert_equal
 
-sys.path = [os.path.abspath(os.path.dirname(__file__) + "/../lookup_plugins/")] + sys.path
+sys.path.insert(1, os.path.join(os.path.dirname(__file__), os.pardir, "lookup_plugins"))
 
 from openshift_master_facts_default_predicates import LookupModule  # noqa: E402
 

roles/openshift_master_facts/test/openshift_master_facts_default_priorities_tests.py

@@ -5,7 +5,7 @@ import sys
 from ansible.errors import AnsibleError
 from nose.tools import raises, assert_equal
 
-sys.path = [os.path.abspath(os.path.dirname(__file__) + "/../lookup_plugins/")] + sys.path
+sys.path.insert(1, os.path.join(os.path.dirname(__file__), os.pardir, "lookup_plugins"))
 
 from openshift_master_facts_default_priorities import LookupModule  # noqa: E402