The jabberd-irc is not taking any options at command line.
You can configure it by editing the config file:
This manual page was written by Alexey Nezhdanov firstname.lastname@example.org for
the Debian system (but may be used by others). Permission is
granted to copy, distribute and/or modify this document under
the terms of the GNU General Public License, Version 2 any
later version published by the Free Software Foundation.
On Debian systems, the complete text of the GNU General Public
License can be found in /usr/share/common-licenses/GPL.