By Dan Gartland Ian Eagle is one of the best sports announcers in the business. He’s been calling games on national television for more than 25 years, so he knows all the typical pitfalls to avoid. For example, he’s aware that some fans will be quick to blame him for the so-called “announcer jinx.” So when Eagle noticed in the second quarter of Wednesday night’s game between the Nets and Suns that Brooklyn had yet to commit a turnover, he made sure to protect himself from accusations of a potential jinx. “Sarah, you don’t believe in announcer jinxes, right?” he asked broadcast partner Sarah Ku…