auth/credentials: if credentials have principal set, they are not anonymous anymore
When dealing with Kerberos, we cannot consider credentials anonymous
if credentials were obtained properly.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11265
Signed-off-by: Alexander Bokovoy <ab@samba.org>
Reviewed-by: Stefan (metze) Metzmacher <metze@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
Autobuild-User(master): Alexander Bokovoy <ab@samba.org>
Autobuild-Date(master): Wed Jul 15 16:32:55 CEST 2015 on sn-devel-104