add keeplocalcopy to the backup structure

Author: HobieCat

backup/moodle2/backup_customcert_stepslib.php

@@ -41,7 +41,7 @@ protected function define_structure() {
         // The instance.
         $customcert = new backup_nested_element('customcert', array('id'), array(
             'templateid', 'name', 'intro', 'introformat', 'requiredtime', 'verifyany', 'emailstudents',
-            'emailteachers', 'emailothers', 'protection', 'timecreated', 'timemodified'));
+            'emailteachers', 'emailothers', 'protection', 'timecreated', 'timemodified', 'keeplocalcopy'));
 
         // The template.
         $template = new backup_nested_element('template', array('id'), array(