How to change Absence FYI notification header (Subject Line)

Summary

How to change Absence FYI notification header (Subject Line)

Content

Hello,

I have requirement to change the Absence FYI Notification for an Employee.

Means when a LM submits an Absence on behalf of an Employee FYI notification reaches Employee. We need to change this notification as 

FYI: XXXXXXXX "Employee Name" XXXXXX "AbsenceType" absence Starts on "Absencestartdate"

Can some one help me how to do the same.

Regards

Chinna