message: Update find-all-people-with-secret.cpp
diff: @@ -35,7 +35,7 @@ public:
  }
  adj.clear();
  }
  - return vector<int>(cbegin(result), cend(result));
  + return {cbegin(result), cend(result)};
  }
  };
  @@ -72,7 +72,7 @@ public:
  }
  adj.clear();
  }
  - return vector<int>(cbegin(result), cend(result));
  + return {cbegin(result), cend(result)};
  }
  };
  