Cron-related mismatch type

[Charter]

Fix for cron-related mismatch type in PhpDig v.1.8.6:

In limit_upd.php find:

$site_cron = eregi_replace('DAY',$days,$tpl_cron);
$site_cron = eregi_replace('URL',$url,$site_cron);

And replace with:

$site_cron = eregi_replace("DAY","$days",$tpl_cron);
$site_cron = eregi_replace("URL","$url",$site_cron);