"TypeError: getLoginInfo() takes no arguments (1 given)" エラー により yum に失敗します

Issue

• RHEL 5 の場合は、yum update に失敗して以下のエラーが表示されます。

# yum update
Loaded plugins: aliases, changelog, downloadonly, fastestmirror, filter-data,
              : keys, kmod, list-data, protect-packages, protectbase, rhnplugin,
              : security, tmprepo, verify, versionlock
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 665, in <lambda>
    conf = property(fget=lambda self: self._getConfig(),
  File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 254, in _getConf                                                                                                 ig
    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/lib/yum-plugins/rhnplugin.py", line 125, in init_hook
    login_info = up2dateAuth.getLoginInfo(timeout=timeout)
TypeError: getLoginInfo() takes no arguments (1 given)