Fixed failing tests from new XEP-0009 plugin

sleekxmpp/plugins/xep_0009/binding.py

@@ -37,7 +37,7 @@ def xml2fault(params):
 def py2xml(*args):
     params = ET.Element("{%s}params" % _namespace)
     for x in args:
-        param = ET.Element("param")
+        param = ET.Element("{%s}param" % _namespace)
         param.append(_py2xml(x))
         params.append(param) #<params><param>...
     return params

tests/test_stanza_xep_0009.py

@@ -6,9 +6,9 @@
     See the file LICENSE for copying permission.
 """
 
-from sleekxmpp.plugins.old_0009 import py2xml
 from sleekxmpp.plugins.xep_0009.stanza.RPC import RPCQuery, MethodCall, \
     MethodResponse
+from sleekxmpp.plugins.xep_0009.binding import py2xml
 from sleekxmpp.stanza.iq import Iq
 from sleekxmpp.test.sleektest import SleekTest
 from sleekxmpp.xmlstream.stanzabase import register_stanza_plugin