message: Update node/src/components/small_network.rs
  Clarifies `debug!` message.
diff: @@ -897,7 +897,7 @@ where
  if era_that_is_ending < self.active_era {
  debug!("ignoring past era end announcement");
  } else if era_that_is_ending != self.active_era {
  - debug!("received future era end announcement, clearing limiters");
  + debug!("received upcoming era validators announcement, clearing limiters");
  self.active_era = era_that_is_ending + 1;
  self.active_era_validators = Default::default();
  