message: Rename `validator` to `participating`
diff: @@ -244,11 +244,11 @@ impl Cli {
  let joiner_reactor = joiner_runner.drain_into_inner().await;
  let config = joiner_reactor.into_participating_config().await?;
  - let mut validator_runner =
  + let mut participating_runner =
  Runner::<participating::Reactor>::with_metrics(config, &mut rng, &registry)
  .await?;
  - match validator_runner.run(&mut rng).await {
  + match participating_runner.run(&mut rng).await {
  ReactorExit::ProcessShouldExit(exit_code) => Ok(exit_code as i32),
  reactor_exit => {
  error!("validator should not exit with {:?}", reactor_exit);
  