Fix indend and add comment

interface/web/login/otp.php

@@ -161,6 +161,7 @@ if($_SESSION['otp']['type'] == 'email') {
 			$data = json_decode($sys_user['otp_data'], TRUE);
 
 			if (!empty($data['otp_email_override'] )) {
+				// Handle otp_email_override.
 				$email_to = $data['otp_email_override'];
 			}
 			else {