Enable some off-by-default checks

Some of the available checks are disabled by default, like:
[H106] Don't put vim configuration in source files
[H203] Use assertIs(Not)None to check for None
[H904] Use ',' instead of '%', String interpolation should be
       delayed to be handled by the logging code, rather than
       being done at the point of the logging call.

Change-Id: Ie985fcf78997a86d41e40eacbb4a5ace8592a348
diff --git a/manila_tempest_tests/tests/api/base.py b/manila_tempest_tests/tests/api/base.py
index 65f1b30..d190b63 100644
--- a/manila_tempest_tests/tests/api/base.py
+++ b/manila_tempest_tests/tests/api/base.py
@@ -91,7 +91,7 @@
             return False  # Do not suppress error if any
         if exc_traceback:
             LOG.error("Suppressed cleanup error in Manila: "
-                      "\n%s" % traceback.format_exc())
+                      "\n%s", traceback.format_exc())
         return True  # Suppress error if any
 
 
@@ -925,7 +925,7 @@
                         client.wait_for_resource_deletion(replica_id=res_id)
                     else:
                         LOG.warning("Provided unsupported resource type for "
-                                    "cleanup '%s'. Skipping." % res["type"])
+                                    "cleanup '%s'. Skipping.", res["type"])
                 res["deleted"] = True
 
     @classmethod