dxpc(1) on Linux
The text 244ea7a36460, as Debian 4.0 (Etch), Debian 3.1 (Sarge) shipped it.
Differential X Protocol Compressor
Flags it lists
-
-D -
-d -
-f -
-k -
-l -
-p -
-t -
-u -
-v -
-w