[rt-users] Ticket history name format change

[Dániel Omaisz-Takács]

Hi all, please help me, i need to change the username format in the
ticket history to display not the username but the realname instead!
For example:
I have the users with random login chars:
S2ttkt is Adam Kovacs

S2ttkt - Ticket 44: Correspondence added
to
Adam Kovacs - Ticket 44: Correspondence added

I tried changeing the Set($UsernameFormat to RealName, Verbose etc but
nothing seams to modify the transaction creators name display format.

Thankyou in forward!