put back OpenID label since we cannot rely on the label display

IkiWiki/Plugin/openid.pm

@@ -30,7 +30,7 @@ sub formbuilder_setup (@) { #{{{
 	if ($form->title eq "signin") {
  		$form->field(
 			name => "openid_url",
-			label => "",
+			label => "OpenID",
 			fieldset => gettext("Log in with")." ".htmllink("", "", "OpenID", noimageinline => 1),
 			size => 30,
 			comment => ($config{openidsignup} ? " | <a href=\"$config{openidsignup}\">".gettext("Get an OpenID")."</a>" : "")