Description of problem:
yum-rhn-plugin fails with traceback


Version-Release number of selected component (if applicable):
Red Hat Enterprise Linux Server release 5.4 (Tikanga)
yum-rhn-plugin-0.9.1-1.el5.noarch
yum-3.2.22-20.el5.noarch
rhn-client-tools-0.9.6-1.el5.noarch

How reproducible:
always

Steps to Reproduce:
1. yum update
2.
3.
  
Actual results:
[root@xen36 ~]# yum update
Loaded plugins: rhnplugin, security
Traceback (most recent call last):
  File "/usr/bin/yum", line 29, in ?
    yummain.user_main(sys.argv[1:], exit_code=True)
  File "/usr/share/yum-cli/yummain.py", line 309, in user_main
    errcode = main(args)
  File "/usr/share/yum-cli/yummain.py", line 157, in main
    base.getOptionsConfig(args)
  File "/usr/share/yum-cli/cli.py", line 187, in getOptionsConfig
    self.conf
  File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 664, in <lambda>
    conf = property(fget=lambda self: self._getConfig(),
  File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 253, in _getConfig
    self.plugins.run('init')
  File "/usr/lib/python2.4/site-packages/yum/plugins.py", line 179, in run
    func(conduitcls(self, self.base, conf, **kwargs))
  File "/usr/share/yum-plugins/rhnplugin.py", line 156, in init_hook
    if channel['label'] not in rhnChannel.channel_blacklist \
AttributeError: 'module' object has no attribute 'channel_blacklist'

Expected results:
yum update works

Additional info: