Description of problem:
spacewalk-create-channel doesn't work with self-signed certificate.

Version-Release number of selected component (if applicable):
spacewalk-remote-utils-2.4.2-1.fc22.noarch

How reproducible:
always

Steps to Reproduce:
1. use default self-signed certificate

Actual results:
spacewalk-create-channel  -l admin -p nimda -s localhost -D /usr/share/rhn/channel-data/5-u1-server-i386-Vt -d my_channel

You have not specified a source channel, we will try to determine it from inputs
Trying with source channel: rhel-i386-server-vt-5
Traceback (most recent call last):
  File "/usr/bin/spacewalk-create-channel", line 485, in <module>
    main()
  File "/usr/bin/spacewalk-create-channel", line 175, in main
    auth = client.auth.login(user, password)
  File "/usr/lib64/python2.7/xmlrpclib.py", line 1240, in __call__
    return self.__send(self.__name, args)
  File "/usr/lib64/python2.7/xmlrpclib.py", line 1599, in __request
    verbose=self.__verbose
  File "/usr/lib64/python2.7/xmlrpclib.py", line 1280, in request
    return self.single_request(host, handler, request_body, verbose)
  File "/usr/lib64/python2.7/xmlrpclib.py", line 1308, in single_request
    self.send_content(h, request_body)
  File "/usr/lib64/python2.7/xmlrpclib.py", line 1456, in send_content
    connection.endheaders(request_body)
  File "/usr/lib64/python2.7/httplib.py", line 1049, in endheaders
    self._send_output(message_body)
  File "/usr/lib64/python2.7/httplib.py", line 893, in _send_output
    self.send(msg)
  File "/usr/lib64/python2.7/httplib.py", line 855, in send
    self.connect()
  File "/usr/lib64/python2.7/httplib.py", line 1274, in connect
    server_hostname=server_hostname)
  File "/usr/lib64/python2.7/ssl.py", line 352, in wrap_socket
    _context=self)
  File "/usr/lib64/python2.7/ssl.py", line 579, in __init__
    self.do_handshake()
  File "/usr/lib64/python2.7/ssl.py", line 808, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:590)

Expected results:
it should work with self-signed certificate