menu: admin/user/notify does not appear

The "notifications" link does not appear in the menu (via the function notify_link)

I found the problem to be this line in function notify_link :
menu("admin/user/notify", "notifications", "notify_admin", NULL, 8);

The bug was fixed when I deleted NULL, 8
My patch is therefore:
menu("admin/user/notify", "notifications", "notify_admin");

I'm not sure what the 'NULL, 8' was for, but I at least wanted to see that menu.

Actually, it would be far more fun for users to have access to notification settings when subscribing or in their profile.