t-rex(1) on Linux
The text 1edf07428c5f, as Debian 6.0 (Squeeze), Debian 5.0 (Lenny), Debian 4.0 (Etch), Debian 3.1 (Sarge) shipped it. The page shows this text now.
create TFTP bootable ECOFF images for DECstations with REX firmware
Flags it lists
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-k -
-l -
-o -
-r