s3:client: The smbspool krb5 wrapper needs negotiate for authentication
If you create a new printer it doesn't have AuthInfoRequired set and so
cups calls the backend with:
AUTH_INFO_REQUIRED=none
In this case we need to return:
ATTR: auth-info-required=negotiate
and return an error that we require authentication.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12886
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
(cherry picked from commit
4cced4da4ca97f0c6db227e6b2c7e03c2e5c1f28)