[horde] Notification push with a link

[Laura McCord]

I want to be able to add a link to a notification however using sprintf
will only write out the string and not actually produce the link as
printf would. Does anyone have any suggestions?

This is what I am trying to do:
 $notification->push(sprintf(_('<a href=\"%s\">test</a>'), $url
),'horde.success');

Thanks,
  Laura