Enable E113,E111,H302,F812,E713 rules

After bumping the hacking version to the 0.9.x series ignores were
added for several rules. This commit fixes the violations for a subset
of these rules and re-enables the checks.

Change-Id: I8cc92a5de5acf43a2143751851cf6fddab401ba4
diff --git a/tempest/cmd/run_stress.py b/tempest/cmd/run_stress.py
index f773996..07f3f66 100755
--- a/tempest/cmd/run_stress.py
+++ b/tempest/cmd/run_stress.py
@@ -51,7 +51,7 @@
         except Exception:
             next
         if 'stress' in attrs:
-            if filter_attr is not None and not filter_attr in attrs:
+            if filter_attr is not None and filter_attr not in attrs:
                 continue
             class_setup_per = getattr(test_func, "st_class_setup_per")