torrc man page missing components for Bridge line

The man page for torrc Bridge currently has an entry: Bridge [transport] IP:ORPort [fingerprint]

an example line i was just given had a bit more than this:

Bridge [transport] IP:ORPort [fp] [cert=...] ] iat-mode=0

perhaps a description of iat-mode and its values would be helpful? and extend the config line?

Trac:
Username: stefanib