Dollar General, the US-based discount retail chain, has announced that it has acquired and plans to reopen dozens of stores previously owned by multinational retail giant Wal-Mart. The low-cost supermarket group said it had acquired 41 of 102 Wal-Mart Express stores closed by its larger rival in January, and plans to relocate 40 of its existing stores into these slightly larger locations by October. Dollar General said that consumers would …