Index: trunk/tools/cron.php
===================================================================
diff -u -N -r6647 -r7635
--- trunk/tools/cron.php	(.../cron.php)	(revision 6647)
+++ trunk/tools/cron.php	(.../cron.php)	(revision 7635)
@@ -1,5 +1,8 @@
 <?php
 
+// Use this line to invoke from cron.
+// wget http://<server_address>/tools/cron.php -O /dev/null > /dev/null 2>&1
+
 define('FULL_PATH', realpath(dirname(__FILE__).'/..'));
 define('REL_PATH', 'tools/');
 define('ADMIN', 1);