message: logging/KeepUp: use lowercase `historical` in all logs for consistency
diff: @@ -319,7 +319,7 @@ impl MainReactor {
  warn!(
  %error,
  remaining_attempts = self.max_attempts.saturating_sub(self.attempts),
  - "Historical: failed leap",
  + "historical: failed leap",
  );
  self.sync_back_leaper_idle(effect_builder, rng, parent_hash)
  }
  @@ -356,16 +356,16 @@ impl MainReactor {
  let block_hash = best_available.highest_block_hash();
  let block_height = best_available.highest_block_height();
  info!(
  - %best_available, ?block_height, ?block_hash, "Historical: leap received");
  + %best_available, ?block_height, ?block_hash, "historical: leap received");
  let era_validator_weights =
  best_available.era_validator_weights(self.validator_matrix.fault_tolerance_threshold());
  for evw in era_validator_weights {
  let era_id = evw.era_id();
  if self.validator_matrix.register_era_validator_weights(evw) {
  - info!(%era_id, "Historical: got era");
  + info!(%era_id, "historical: got era");
  } else {
  - debug!(%era_id, "Historical: already had era");
  + debug!(%era_id, "historical: already had era");
  }
  }
  KeepUpInstruction::CheckLater("historical sync leap received".to_string(), Duration::ZERO)
  @@ -392,7 +392,7 @@ impl MainReactor {
  self.chainspec.core_config.simultaneous_peer_requests as usize,
  );
  debug!(
  - "Historical: register_block_by_hash: {} peers count: {:?}",
  + "historical: register_block_by_hash: {} peers count: {:?}",
  parent_hash,
  peers_to_ask.len()
  );
  