From http://www.jwz.org/xscreensaver/xscreensaver-5.40.tar.gz
[xscreensaver] / hacks / interference.man
2015-07-02 Zygo BlaxellFrom jwz.org/xscreensaver/xscreensaver-5.33.tar.gz
2013-02-08 Zygo Blaxellwww.jwz.org/xscreensaver/xscreensaver-5.07.tar.gz
2013-02-08 Zygo Blaxellftp://ftp.swin.edu.au/slackware/slackware-9.1/source...
2013-02-08 Zygo Blaxellpacketstormsecurity.org/UNIX/admin/xscreensaver-4.04...