Show days in received message private from infraction system

[testebr]

Dear support,

When an user receives an infraction the system sends a private message automatically, but it doesn't inform the number of days of the punishment.

The actual template of pm for infractions is:

Dear $infraction[username],

You have received an infraction at $vboptions[bbtitle].

$infraction[post]

Reason: $infraction[reason]
-------
$infraction[message]
-------

This infraction is worth $infraction[points] point(s) and may result in restricted access until it expires. Serious infractions will never expire.

All the best,
$vboptions[bbtitle]

I want to show in how many days the punishment will expire.

Any easy soluton or need an custom modification from the great vb.org people?

Thank you!


ps: original post from http://www.vbulletin.com/forum/showthread.php?t=232288