message: Fixing grammar (its -> it's)
diff: @@ -238,7 +238,7 @@ mod tests {
  #[test]
  fn new_exponent_speed_up() {
  - // If there's been enough successful rounds and its an acceleration round, speed up
  + // If there's been enough successful rounds and it's an acceleration round, speed up
  let mut round_success_meter: super::RoundSuccessMeter<ClContext> =
  super::RoundSuccessMeter::new(
  TEST_ROUND_EXP,
  @@ -261,7 +261,7 @@ mod tests {
  #[test]
  fn new_exponent_can_not_speed_up_because_min_round_exp() {
  - // If there's been enough successful rounds and its an acceleration round, but we are
  + // If there's been enough successful rounds and it's an acceleration round, but we are
  // already at the smallest round exponent possible, stay at the current round exponent
  let mut round_success_meter: super::RoundSuccessMeter<ClContext> =
  super::RoundSuccessMeter::new(
  