3 people in a line are hit by Lightning Bolt. Do the last 2 get +2 to the save from half cover from the first?

@RobinBergmark @JeremyECrawford3 people in a line are hit by Lightning Bolt. Do the last 2 get +2 to the save from half cover from the first? at DM's option, depends on size of first target and situation

— (((Mike Mearls))) (@mikemearls) July 5, 2016