Code review comment for lp:~james-w/subunit/discovery

I think I'd like to see something like this:

python -m subunit.run --asdf
option --asdf not recognized

Execute a python test suite with subunit reporting.

Usage: python -m subunit.run [options] [tests]

.. the stock stuff here.

And in testtools it should say

python -m testtools.run --asdf
option --asdf not recognized

Execute a python test suite.

Usage: testtools.run [options] [tests]

...

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I note that the thing to run is being misdetected for you; I thought I
fixed that, perhaps you didn't grab testtools trunk - or my fix was
incomplete.