Code review comment for lp:~jimbaker/pyjuju/charm-format-2

Another note: relation-ids and relation-list don't generate yaml; this
is odd, given that we favour yaml everywhere else; and while they should
not *default* to outputting yaml (ie we leave their format_smart methods
alone), we really *should* at least make the option available (by
implementing format_yaml on the base class).

https://codereview.appspot.com/6308044/