Changing upper chars to lower in new loginname

SE/se-lib/Route/FixUsersLongLogin.php

@@ -43,7 +43,7 @@ class Route_FixUsersLongLogin extends RouteBase {
 					$newLogin = explode('.', $user->ADM_ACCOUNT, 2);
 					$newLogin = substr($newLogin[0], 0, 1) . ".{$newLogin[1]}";
 					if (strlen($newLogin) > 20) {
-						$newLogin = substr($newLogin, 0, 20);
+						$newLogin = strtolower(substr($newLogin, 0, 20));
 					}
 				} else {
 					$newLogin = substr($user->ADM_ACCOUNT, 0, 20);