Mode 22000 Bad file descriptor

[Mem5]

Hi Zerbea,
Fully agree to use hex instead of ASCII.

My initial question was why mode 16800 accepts --username but mode 22000 does not, because both inputs are in hex.
Having a look at the source code I now see that mode 16800 does not have option OPTS_TYPE_BINARY_HASHFILE, like @atom said, while mode 2500 & 22000 do have.