Sorting on worflows alert email templates list not working in sugarcrm 6.5

Found solution.... It can be useful to others so posting it here.

// go to custom/modules/WorkFlow/ path if file "WorkFlowListView.php" not found,
// go to modules/WorkFlow/WorkFlowListView.php
// copy file and paste in custom/modules/WorkFlow/

// Now edit file "WorkFlowListView.php" and find below line

$ListView->setQuery($where, "", "email_templates.date_entered DESC", "EMAIL_TEMPLATE", false);

//Just replace false to true in above line

$ListView->setQuery($where, "", "email_templates.date_entered DESC", "EMAIL_TEMPLATE", true);

That's it.
Now check your workflows alert email template list view, you can sort columns now.