url_title4.pl: fix typo

scripts/autorun/url_title4.pl

@@ -60,7 +60,7 @@ sub url_process {
     if ($filtering && grep { uc($target) eq uc($_) } @channels) {
         my $filters = Irssi::settings_get_str('url_title_site_filters');
 
-        if ($handler->filter($text, $filters)) {
+        if ($handler->filters($text, $filters)) {
             return;
         }
     }