pgmtoimgv(1) on Linux
The text 73bc9da186de, as Debian 6.0 (Squeeze), Debian 5.0 (Lenny), Debian 4.0 (Etch) shipped it.
Portable Graymap to Pilot Image Viewer converter.
Flags it lists
-
-4 -
-c -
-h -
-m -
-n -
-t -
-u -
-v