--- ec.c.orig   2000-10-14 01:49:16.000000000 +0300
+++ ec.c        2014-01-16 20:40:10.000000000 +0200
@@ -218,7 +218,7 @@
 {
 	static char str[32];
 
-	(void)sprintf(str, "%x:%x:%x:%x:%x:%x",
+	(void)sprintf(str, "%02x:%02x:%02x:%02x:%02x:%02x",
 	    e[0], e[1], e[2], e[3], e[4], e[5]);
 	return (str);
 }