[sheepdog] [PATCH 6/7] test: fix 006

[Christoph Hellwig]

On Mon, Aug 13, 2012 at 04:14:03PM +0800, Liu Yuan wrote:
> From: Liu Yuan <tailai.ly at taobao.com>
> 
> We should wait all the sheep to join completion before issuing any collie
> command
> 
> - add a helper _wait_for_sheep_join(nr_sheep)

Looks good, but again please add a comment explaining it.

I'd also suggest to rename it, probably just _wait_for_sheep, while
the comment explains that we want them joined.