By Stephen Weizman OCCUPIED JERUSALEM — Benjamin Netanyahu, Israel's longest-serving prime minister, is a veteran right-winger, who has spent years outlasting his political opponents. The 70-year-old is also the first premier in Israeli history to be indicted in office, accused of corruption charges that threatened to end his political career. But exit polls following Israel's election on Monday put Netanyahu on track to form the next government, defying forecasts that the charges against him could lead to his demise. The burly son of a historian with the familiar grey comb-over hair