UPDATE 2-Sears Holdings forecasts first-quarter loss

Board approves repurchase of up $500 mln more stock (Adds details, closing share price) n"May 2 (Reuters) - Sears Holdings Corp (SHLD.O This comes about two months after Sears named former Avaya Inc [AVXX.UL] CEO Lou D'Ambrosio as its CEO. He succeeds...