message: Fixing done -> down typo
diff: @@ -708,7 +708,7 @@ where
  }
  }
  signal_code => {
  - error!("Received signal code {}, shutting done", signal_code);
  + error!("Received signal code {}, shutting down", signal_code);
  break ReactorExit::ProcessShouldExit(ExitStatus::Abort);
  }
  }
  