The RHN API method system.listNotes() throws the error `xml.parsers.expat.ExpatError: XML or text declaration not at start of entity: line 1, column 96`

Issue

• system.listNotes() API throws an error below:

t430s> ./listNotes.py 
Enter the name: servername.example.com
Traceback (most recent call last):
  File "./listNotes.py", line 52, in <module>
    notes = x.listNotes(sID)
  File "./listNotes.py", line 37, in listNotes
    return self.client.system.listNotes(self.token, int(serverID))
  File "/usr/lib64/python2.7/xmlrpclib.py", line 1224, in __call__
    return self.__send(self.__name, args)
  File "/usr/lib64/python2.7/xmlrpclib.py", line 1578, in __request
    verbose=self.__verbose
  File "/usr/lib64/python2.7/xmlrpclib.py", line 1264, in request
    return self.single_request(host, handler, request_body, verbose)
  File "/usr/lib64/python2.7/xmlrpclib.py", line 1297, in single_request
    return self.parse_response(response)
  File "/usr/lib64/python2.7/xmlrpclib.py", line 1467, in parse_response
    p.feed(data)
  File "/usr/lib64/python2.7/xmlrpclib.py", line 557, in feed
    self._parser.Parse(data, 0)
xml.parsers.expat.ExpatError: XML or text declaration not at start of entity: line 1, column 96