refs #3383721: The module help link fixed

list_formatter.module

@@ -13,7 +13,7 @@ use Drupal\Core\Template\Attribute;
  */
 function list_formatter_help($path, $arg) {
   switch ($path) {
-    case 'admin/help#List':
+    case 'help.page.list_formatter':
       $output = '<p>' . t("The text formatter module provides a new display formatter that can
         be used on any text, number, list, or taxonomy fields.") . '</p>';
       $output .= '<p>' . t("Go to 'Manage display' for your entity field display settings and