No gains are good news. Procter & Gamble said its first quarter results met expectations, as reported sales were flat at $20.8 billion and core earnings rose 2%. The company also announced that it would put its Duracell battery unit up for sale and that it had completed the sale of its pet food business.   “P&G’s first quarter results were in-line with our expectations, despite a very difficult operating environment,” said Chairman, President, and Chief Executive Officer A.G. Laf...