Fix warning regarding unsigned int for node_id

git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@987 fd59a12c-fef9-0310-b244-a6a79926bd2f

exec/totem.h

@@ -85,7 +85,7 @@ struct totem_config {
 	 */
 	struct totem_interface *interfaces;
 	int interface_count;
-	int node_id;
+	unsigned int node_id;
 
 	/*
 	 * key information