ffglut(1) on Linux
The text c4584a1c7b88, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy) shipped it. The page shows this text now.
a visualisation tool, based on the GLUT library, used for viewing meshes and results within FreeFem++