zentao/extension/ipd/message/ext/lang/en/zentaomax.php

<?php
$lang->message->label->toaudit        = 'Submit audit';
$lang->message->label->minuted        = 'Minuted';
$lang->message->label->cc             = 'Mail to';
$lang->message->label->approval       = 'Approval';
$lang->message->label->submit         = 'Submit';
$lang->message->label->cancel         = 'Cancel';
$lang->message->label->review         = 'Review';
$lang->message->label->revert         = 'Revert';
$lang->message->label->forward        = 'Forward';
$lang->message->label->audited        = 'Audit';
$lang->message->label->tracked        = 'Track';
$lang->message->label->hangup         = 'Hangup';
$lang->message->label->issueconfirmed = 'Confirm';
$lang->message->label->executed       = 'Execute';
$lang->message->label->checked        = 'Checked';