This is one of the few remaining instances of flapping coverage in coveralls. They both appear to be related to shared_random. compare [this](https://coveralls.io/builds/20704337/source?filename=src/feature/dirauth/dirvote.c#L4010) and [this](https://coveralls.io/builds/20689105/source?filename=src/feature/dirauth/dirvote.c#L4010) also [this](https://coveralls.io/builds/20704337/source?filename=src/feature/dirauth/shared_random.c#L478) and [this](https://coveralls.io/builds/20689105/source?filename=src/feature/dirauth/shared_random.c#L478)