Talk about cutting it close. Just as many pundits were expecting the recently united Sirius XM to file for bankruptcy today as it stared down a huge loan payment, John Malone’s Liberty Media has swooped in to save the day. The company, which just so happens to be the parent of DirecTV, has signed a last minute agreement that will prevent the satellite radio company from having to file for Chapter 11.As part of the deal, Liberty’s chairman (John Malone; pictured) and chief executive (Greg Maffei) are expected