Fix typo

Fix typo in the configuration loader event description.
Signed-off-by: Taylor Otwell <taylorotwell@gmail.com>

application/start.php

@@ -22,7 +22,7 @@ ini_set('display_errors', 'Off');
 | The Laravel configuration loader is responsible for returning an array
 | of configuration options for a given bundle and file. By default, we
 | use the files provided with Laravel; however, you are free to use
-| your own storage mechanism for configuration files.
+| your own storage mechanism for configuration arrays.
 |
 */