[MERGE] [#306424] Add trailing slash to directories in `bzr ls` output

[Martin Pool]

Martin Pool has voted approve.
Status is now: Conditionally approved
Comment:
I'd be ok with even including it in --null output, or not.  Shell 
scripts that are reading it will probably cope fine with directories 
having this on the end, and it might even be useful to them.

For details, see: 
http://bundlebuggy.aaronbentley.com/project/bzr/request/%3Cfda8f3c50812090147x73be2c06ob281073b020cf0d6%40mail.gmail.com%3E
Project: Bazaar