(Editor's Note: In the article published May 23, 2003, the amount of AutoZone Inc.'s commercial paper program was misstated. The correct amount is $950 million. A corrected version follows.) NEW YORK (Standard&Poor's) June 3, 2003--Standard&Poor's Ratings Services revised its outlook on AutoZone Inc. to stable from positive. At the same time, Standard&Poor's affirmed its 'BBB+' corporate credit rating on the Memphis, Tenn.-based company. Approximately $1.3 billion of debt is affected by this action. "The revised outlook is based on Standard&Poor's belief that AutoZone's share repurchase activity will be more aggressive than previously anticipated resulting in diminished prospects for better credit ratios and a higher rating," said credit analyst Patrick Jeffrey. AutoZone is