OpenSSH environment passing

simon_l_evans_at_yahoo.co.uk
Date: 11/23/05 

Date: 23 Nov 2005 14:18:55 -0800

I am using OpenSSH_4.0p1, OpenSSL 0.9.7c 30 Sep 2003 on a Solaris
machine.
I have seen the use of the environment="LOGNAME=mylogon" in the
authorized_keys file and have implemented this.
But...
I log in and authenticate fine against this key but cannot see where
LOGNAME has been changed. In debug mode (server and client) shows
LOGNAME as the original and not the overridden value. Not sure if I am
understanding the process correctly?
Any help appreciated.