--- a/util.c	Mon Aug 28 08:06:50 2006 +0200
+++ b/util.c	Mon Aug 28 08:17:27 2006 +0200
@@ -51,6 +51,7 @@
 
 	if(!arg->cmd)
 		return;
+	/* the double-fork construct avoids zombie processes */
 	if(fork() == 0) {
 		if(fork() == 0) {
 			if(dpy)