clipperhouse/gen — pull request #54 by infogulch (2014-07-02 14:58:20+00:00)
Title: Unknown subcommands print usage

If you use a subcommand that doesn't exist, it should print usage.

I left `case "help":` for clarity, and just in case unknown subcommands have different behavior in the future (like saying "invalid subcommand" or something).