&$archive: PageArchive object
$title: Title object of the page that we're viewing
-'UndeleteForm::undelete': Called un UndeleteForm::undelete, after checking that
+'UndeleteForm::undelete': Called in UndeleteForm::undelete, after checking that
the site is not in read-only mode, that the Title object is not null and after
a PageArchive object has been constructed but before performing any further
processing.