Program was written by Thomas E. Dickey <dickey@his.com>, Steve Wall
and Todd Larason.
This manual page was written by Jari Aalto <jari.aalto@cante.net>, for
the Debian GNU system (but may be used by others). Released under
license GNU GPL version 3 or (at your option) any later version. For
more information about license, visit
<http://www.gnu.org/copyleft/gpl.html>.