Goodlettsville, Tenn. — Dollar General Corp. has announced recent expansions in its supply chain network that will grow the discount retailer’s distribution footprint by more than 3.2 million square feet. The Goodlettsville, Tenn.-based company has recently opened three new facilities and announced expansions of two existing campuses that will support Dollar General’s traditional goods, as well as its DG Fresh line of groceries. “The recent additions to our supply chain network aim to provide greater efficiencies, create additional jobs and drive positive economic impact,” says Tony Zuazo, executive vice president …