ipatests: smbclient "-k" => "--use-kerberos=desired"
Change documentation:
https://download.samba.org/pub/samba/rc/samba-4.15.0rc1.WHATSNEW.txt
As of Samba 4.15rc1, smbclient does not accept "-k" anymore.
The "-k|--kerberos" option ("Try to authenticate with kerberos.")
has been replaced with "--use-kerberos=required|desired|off".
Fixes: https://pagure.io/freeipa/issue/8926
Signed-off-by: François Cami <fcami@redhat.com>
Reviewed-By: Michal Polovka <mpolovka@redhat.com>