[MERGE] concise help for commands by default

[Jelmer Vernooij]

Jelmer Vernooij has voted approve.
Status is now: Approved
Comment:
While I agree there is some use in adding a --usage option, I think this 
is generally an improvement over the current situation.

You use "," without a following space inside some tuples

For details, see: 
http://bundlebuggy.aaronbentley.com/project/bzr/request/%3C498BF29F.4020409%40internode.on.net%3E
Project: Bazaar