Issue 4879: Allow buffering for HTTPResponse
diff --git a/Lib/test/test_xmlrpc.py b/Lib/test/test_xmlrpc.py
index c9294b1..6b36109 100644
--- a/Lib/test/test_xmlrpc.py
+++ b/Lib/test/test_xmlrpc.py
@@ -655,7 +655,7 @@
     def getvalue(self):
         return self.data.getvalue()
 
-    def makefile(self, x, y):
+    def makefile(self, x='r', y=-1):
         raise RuntimeError
 
 class FakeTransport(xmlrpclib.Transport):