Code review comment for lp:~ltrager/maas/stress_ng_tests

Sorry, I wasn't clear. Despite the similarities between sh and bash a change from one to the other may introduce bugs, and we're close to release. I wanted your feedback on whether you thought a policy like that would be okay with you. I guess that's a yes! You may want to revert r5860 and keep it for another day. And sorry again: rereading my comment makes it clear to me now that it was unclear when I wrote it.