Index: conf_act.c
===================================================================
--- conf_act.c	(revision 28768)
+++ conf_act.c	(revision 28769)
@@ -50,7 +50,7 @@
 	int res;
 	va_list ap;
 	va_start(ap, fmt);
-	res = pcb_append_vprintf((gds_t *)ctx, fmt, ap);
+	res = pcb_safe_append_vprintf((gds_t *)ctx, 0, fmt, ap);
 	va_end(ap);
 	return res;
 }