From http://www.jwz.org/xscreensaver/xscreensaver-5.40.tar.gz
[xscreensaver] / hacks / glx / zalgo.txt
2018-08-13 Zygo BlaxellFrom jwz.org/xscreensaver/xscreensaver-5.40.tar.gz master
2015-07-02 Zygo BlaxellFrom jwz.org/xscreensaver/xscreensaver-5.33.tar.gz