message: Rename _food to food
diff: @@ -47,7 +47,7 @@ private:
  void kill_students(int morale, int hospitals);
  void kill_adults(Population::PersonRole role, int morale, int hospitals);
  - int consume_food(int _food);
  + int consume_food(int food);
  using PopulationTable = std::array<int, 5>;
  