GSS_C_INT_FLAG if the caller requseted it.
This is because Kerberos always support INT|CONF, matches behavior
with MS and MIT. The creates problems for the GSS-SPNEGO mech.
git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@20058 ec53bebd-3082-4978-b11e-865c3cabbd6b