cmd: add support for todo_wine constructions in testing infrastructure

[Frédéric Delanoy]

2011/6/13 Dan Kegel <dank at kegel.com>:
>
> In the meantime, please either send a separate patch
> that removes todo_space, or just leave todo_space alone for now.
>
>>> To avoid adding dead code, it might be nice to
>>> see a test that actually uses your new keyword.
>>
>> I've made several mkdir tests with it, and it seems to work OK. I was
>> waiting to see if this patch is commited before I submit.
>> You can see it here: http://pastebin.com/tnKY4Q7S
>
> I'd like to see the code that implements @todo_wine@ submitted
> in the same patch as the first test that uses it.
> - Dan

I'll probably send them in a patch series; should be good enough, no?