Translate Approval History Comments on Change Request

[ApurvaS]

We are trying to translate Approval History Message "Change Request has been approved by Normal Change Policy (Technical approvals)." on Change Request. This message is coming via a Script Include "ChangePolicyApprovalActivitySNC" and below is code snippet

 if (state === this.APPROVED)
                    comment = this._gs.getMessage("Change Request has been approved by {0} ({1}).", [chgPolAppGR.getDisplayValue(), this._activity.activity.name.toString()]);

 We have created record in sys_ui_message table for French but it is not working, can some help?