map unknown event to break

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@9926 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/endpoints/mod_sofia/sofia.c

@@ -273,6 +273,7 @@ void sofia_event_callback(nua_event_t event,
 	case nua_r_unsubscribe:
 	case nua_r_publish:
 	case nua_i_cancel:
+	case nua_r_cancel:
 	case nua_i_error:
 	case nua_i_active:
 	case nua_i_ack: