only honor the first OID in the sessetup snego negotiate. Deviates

only honor the first OID in the sessetup snego negotiate.  Deviates
from RFC but I'm smelling a client bug here.

	/* only look at the first OID for determining the mechToken --
	   accoirding to RFC2478, we should choose the one we want
	   and renegotiate, but i smell a client bug here..

	   Problem observed when connecting to a member (samba box)
	   of an AD domain as a user in a Samba domain.  Samba member
	   server sent back krb5/mskrb5/ntlmssp as mechtypes, but the
	   client (2ksp3) replied with ntlmssp/mskrb5/krb5 and an
	   NTLMSSP mechtoken.                 --jerry              */