Copyright and license for the random.4 manual page

Copyright for random.4:

Copyright (c) 1997 John S. Kallal (kallal@voicenet.com)

License for random.4:

This is free documentation; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of
the License, or (at your option) any later version.