[krbdev.mit.edu #5291] kadmin and kadmin.local with -h

[Jeff Blaine via RT]

It makes no sense to have a program containing usage information
that is not accessible unless one provides an invalid flag to
the program:

/export/k5/sbin/kadmin -h
/export/k5/sbin/kadmin: illegal option -- h
Usage: kadmin [-r realm] [-p principal] [-q query] [clnt|local args]
         clnt args: [-s admin_server[:port]] [[-c ccache]|[-k [-t keytab]]]
         local args: [-x db_args]* [-d dbname] [-e "enc:salt ..."] [-m]
where,
         [-x db_args]* - any number of database specific arguments.
                         Look at each database documentation for 
supported arguments