Code review comment for lp:~vanvugt/mir/run-without-entropy

Alan: Actually I resubmitted this MP only to change the prerequisite branch.

This branch was discussed in the meeting this morning. Brandon and Chris seem to be happy with the idea of using this branch together with an init script/systemd enhancement that primes the kernel entropy pool at boot time (a prerequisite to USC starting). That would give us the best of both worlds -- a cryptographically secure entropy seed, and also Mir logic that is guaranteed to not hang or crash.