Burger King wants people to feel less guilty about gobbling up its french fries. The world’s No. 2 hamburger chain is launching a new crinkle-cut french fry on Tuesday that it says has about 20 percent fewer calories than its regular french fries. The chain says a small order of the new “Satisfries” clocks in at 270 calories because of a new batter that doesn’t absorb as much oil. By comparison, a small order of its regular fries, sans crinkles, has 340 calories. …