python3: Fix trivial error in clone()

src/python-lxc/lxc/__init__.py

@@ -216,8 +216,8 @@ class Container(_lxc.Container):
 
         args = {}
         args['newname'] = newname
-        args['flags'] = 0
-        args['newsize'] = 0
+        args['flags'] = flags
+        args['newsize'] = newsize
         args['hookargs'] = hookargs
         if config_path:
             args['config_path'] = config_path