From http://www.jwz.org/xscreensaver/xscreensaver-5.29.tar.gz

-rw-r--r-- 1 zblaxell zblaxell 8774562 Jun  8 18:04 xscreensaver-5.29.tar.gz
a27a10c6eed024c458e927ee0dc1e6cb306d3335  xscreensaver-5.29.tar.gz
From http://www.jwz.org/xscreensaver/xscreensaver-5.30.tar.gz

-rw-r--r-- 1 zblaxell zblaxell 9546797 Sep 10 23:48 xscreensaver-5.30.tar.gz
6aa6d6032e26376f9a84820f3a9cc510dface4cb  xscreensaver-5.30.tar.gz