Cleanup xmlrpc: remove obsolete comments, unused imports. Add test for bytes marshalling.
diff --git a/Lib/test/test_xmlrpc.py b/Lib/test/test_xmlrpc.py
index e7b048b..e97420b 100644
--- a/Lib/test/test_xmlrpc.py
+++ b/Lib/test/test_xmlrpc.py
@@ -140,6 +140,9 @@
                           ('host.tld',
                            [('Authorization', 'Basic dXNlcg==')], {}))
 
+    def test_dump_bytes(self):
+        self.assertRaises(TypeError, xmlrpclib.dumps, (b"my dog has fleas",))
+
     def test_ssl_presence(self):
         try:
             import ssl
@@ -177,7 +180,7 @@
         self.assertRaises(xmlrpclib.Fault, xmlrpclib.loads, s)
 
     def test_dotted_attribute(self):
-        # this will raise AttirebuteError because code don't want us to use
+        # this will raise AttributeError because code don't want us to use
         # private methods
         self.assertRaises(AttributeError,
                           xmlrpc.server.resolve_dotted_attribute, str, '__add')