Fix module arg parsing when 'args' are present but not a dict (v2)

v2/ansible/parsing/mod_args.py

@@ -135,7 +135,11 @@ class ModuleArgsParser:
 
         # this can occasionally happen, simplify
         if args and 'args' in args:
-            args = args['args']
+            tmp_args = args['args']
+            del args['args']
+            if isinstance(tmp_args, string_types):
+                tmp_args = parse_kv(tmp_args)
+            args.update(tmp_args)
 
         # finally, update the args we're going to return with the ones
         # which were normalized above

v2/ansible/plugins/cache/__init__.py

@@ -27,6 +27,7 @@ class FactCache(MutableMapping):
     def __init__(self, *args, **kwargs):
         self._plugin = cache_loader.get(C.CACHE_PLUGIN)
         if self._plugin is None:
+            # FIXME: this should be an exception
             return
 
     def __getitem__(self, key):