message: Rename `retiree` to `newRetiree`
diff: @@ -74,7 +74,7 @@ void Population::spawnPopulation(int morale, int residences, int nurseries, int
  const auto newStudents = spawnRole(PopulationTable::Role::Student, mPopulation.child, divisorStudent);
  const auto newWorker = spawnRole(PopulationTable::Role::Worker, growthWorker, divisorAdult);
  const auto newScientist = spawnRole(PopulationTable::Role::Scientist, growthScientist, divisorAdult);
  - const auto retiree = spawnRole(PopulationTable::Role::Retired, totalAdults / 10, divisorRetiree);
  + const auto newRetiree = spawnRole(PopulationTable::Role::Retired, totalAdults / 10, divisorRetiree);
  mBirthCount = newChildren;
  mPopulation.child -= newStudents;
  @@ -83,7 +83,7 @@ void Population::spawnPopulation(int morale, int residences, int nurseries, int
  /** Workers retire earlier than scientists. */
  const auto retireRole = randomNumber.generate(0, 100) <= 45 ?
  PopulationTable::Role::Scientist : PopulationTable::Role::Worker;
  - if (mPopulation[retireRole] > 0) { mPopulation[retireRole] -= retiree; }
  + if (mPopulation[retireRole] > 0) { mPopulation[retireRole] -= newRetiree; }
  }
  