/usr/bin/kvno: unrecognized option '--help'
usage: kvno [-c ccache] [-e etype] [-k keytab] [-q] [-u | -S sname]
	[[{-F cert_file | {-I | -U} for_user} [-P]] | --u2u ccache]
	[--cached-only] [--no-store] [--out-cache] service1 service2 ...