message: missing space in diagnostic output
diff: @@ -75,7 +75,7 @@ static uint64_t generate_unique_session_id()
  static std::string generate_log_prefix(uint64_t i)
  {
  std::ostringstream oss;
  - oss << "session #" << i;
  + oss << "session #" << i << " ";
  return oss.str();
  }
  