All Catalog Task variables displayed in a Notification ServiceNow

(function runMailScript(current, template, email, email_action, event) {
     // Get Requested Item
    var reqitem = current.request_item;
     // Get Owned Variables for Requested Item and sort by Order
    var ownvar = new GlideRecord('sc_item_option_mtom');
    ownvar.addQuery('request_item.number', reqitem.number);
    ownvar.addQuery('sc_item_option.value', '!=', '');
    ownvar.orderBy('sc_item_option.order');
    ownvar.query();
    while (ownvar.next()) {
         // Add Question, Answer and Order into notification mail
        // Set variable v to variable name
        var field = ownvar.sc_item_option.item_option_new;
        var fieldValue = ownvar.sc_item_option.item_option_new.name;
         // Print variable name and Display Value for each variable in Requested Item
        template.print('<p><b>' + field.getDisplayValue() + '</b>' + ': ' + reqitem.variables[fieldValue].getDisplayValue()) + '</p>';
     }
 })(current, template, email, email_action, event);