-- Telnet-proxy ${verdate}
-- Usage:
--   c host         -- connect to the `host'
--   x [host:disp#] -- set X proxy to the X server `host:disp#'
--   a host         -- start X proxy to accept from the X client `host'
--   j [j|k|s|e|t]  -- Japanese character code conversion
--   quit / exit    -- disconnect
--
-- Note: The only acceptable X client host is the Telnet server host specified
-- in "c Telnet-server-host".  You can change it by 'a X-client-host'.