[Haskell-cafe] hledger subcommand detection, RFC

[Neil Mitchell]

>
>  * an option to all commands that lists out all its available
> options, to aid with shell completion. See the link I posted above
> about the oggz tools for an example usage and a link to a bash
> completion file.
>

Note that the next version of CmdArgs will include command line flag
completion automatically, so you might want to leave that feature a little
while and see if you can make use of the CmdArgs feature.

Thanks, Neil
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