/**
* @brief igmp listen (RFC3376 Section 2).
* @param vm - vlib main
- * @param enable - 0 == remove (S,G), else add (S,G), aka. include/exclue
+ * @param enable - 0 == remove (S,G), else add (S,G), aka. include/exclude
* @param sw_if_index - interface sw_if_index
* @param saddr - source address
* @param gaddr - group address
- * @param cli_api_configured - if zero, an igmp report has been received on interface
*
* Add/del (S,G) on an interface. If user configured,
* send a status change report from the interface.