In `~/.ssh/config`, i have:

   HashKnownHosts No

But when `monkeysphere-ssh-proxycommand` adds new hosts to
`~/.ssh/known_hosts`, they appear to be added in a hashed form,
instead of in the clear.

fwiw: i'm using OpenSSH 5.1p1 on a debian lenny system (backported
from sid)