Dollar General Corporation DG reported better-than-expected first-quarter earnings and raised its full-year outlook on Tuesday.The general store operator said quarterly net sales increased 5.3% to $10.44 billion, barely missing the consensus of$10.64 billion. The company reported net income of $391.9 million, up 7.9$1.78 per share, compared to $1.65 a year ago, beating the consensus of$1.58.“We are pleased with our start to the year, including strong same-store sales and EPS results,” ...