Passthrough suites log the expected role of the process logging any given message:

[ShardedClusterFixture:job11:configsvr:primary]

But this doesn't include the port number that the process is listening on, which can make it difficult to correlate messages in the logs between processes. I propose adding the port message to the information already logged, so it looks something like:

[ShardedClusterFixture:job11:configsvr:primary:20010]