r4286: Give back 8 byte lm_session_key in Netrsamlogon-reply.

r4286: Give back 8 byte lm_session_key in Netrsamlogon-reply.

The old #ifdef JRATEST-block was copying 16 bytes and thus overwriting
acct_flags with bizarre values, breaking a lot of things.

This patch is successfully running in a production environment for quite
some time now and is required to finally allow Exchange 5.5 to access
another Exchange Server when both are running on NT4 in a
samba-controlled domain. This also allows Exchange Replication to take
place, Exchange Administrator to access other Servers in the network,
etc. Fixes Bugzilla #1136.

Thanks abartlet for helping me with that one.

Guenther