Code review comment for lp:~raof/mir/probe-client-drivers

I still believe we could bend rpath* to our will and avoid wrappers. Although it's not impossible to figure that part out later and then drop the wrapper.

As for the minor cleanups, I still recommend resolving them. But I haven't revised this branch in detail. The end goal is rather important even if parts of the solution feel a bit ugly. I don't want to block it either.