cpg: Be more verbose for procjoin message

Signed-off-by: Jan Friesse <jfriesse@redhat.com>
Reviewed-by: Steven Dake <sdake@redhat.com>

exec/cpg.c

@@ -1253,7 +1253,10 @@ static void message_handler_req_exec_cpg_procjoin (
 {
 	const struct req_exec_cpg_procjoin *req_exec_cpg_procjoin = message;
 
-	log_printf(LOGSYS_LEVEL_DEBUG, "got procjoin message from cluster node %d", nodeid);
+	log_printf(LOGSYS_LEVEL_DEBUG, "got procjoin message from cluster node %d (%s) for pid %u",
+		nodeid,
+		api->totem_ifaces_print(nodeid),
+		(unsigned int)req_exec_cpg_procjoin->pid);
 
 	do_proc_join (&req_exec_cpg_procjoin->group_name,
 		req_exec_cpg_procjoin->pid, nodeid,