rhnreg_ks command allows users to manage registration to a Red Hat
Network (RHN) (e.g. rhn.redhat.com) server. The moduel will also
interact with the specified RHN system via XMLRPC as needed.
Before proceeding with registration, the rhnreg_ks module will enable
the system to receive updates from RHN. This involves enabling the
appropriate RHN yum plugin, as well as disabling an active
subscription-manager yum plugin.
Once enabled, the module will support the following operations:
* configure
* register
* subscribe to custom child channels (see `rhn-channel` command)
* unregister
