gifburst(1) on Linux
The text d2b81e9e936a, as Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze) shipped it. The page shows this text now.
The gifburst program takes a named GIF file and breaks it into equal-sized tiles. This is useful if a GIF is too large for your viewer, so you have to look at it in sections.