Refuse the socket shortcut

Recorded here because it is the tempting move and it will look reasonable at the time. orbistoun opening port 2121 and speaking FTP itself would pass pros check in an afternoon and prove nothing - principle 3's plausible output at the scale of a subsystem.

The point of pointing Prosperous at orbistoun is that it is an oracle nobody here wrote and a stub cannot fool. Every byte it sees has to have been produced by guest code executing. The same applies to special-casing by payload: /dev/klog is a device the platform has, so emulating the device is the job - noticing the guest is klogsrv and feeding it the trace is not.