Update domain_setting_edit.php (#4447)

core/domain_settings/domain_setting_edit.php

@@ -17,7 +17,7 @@
 
  The Initial Developer of the Original Code is
  Mark J Crane <[email protected]>
- Portions created by the Initial Developer are Copyright (C) 2008-2018
+ Portions created by the Initial Developer are Copyright (C) 2008-2019
  the Initial Developer. All Rights Reserved.
 
  Contributor(s):