BUENA VISTA — For the lucky 13th time, it’s my duty to wrap up the Ocean City Thursday Senior Golf League’s 33rd season of play. (They told me this gig would only last two years.) Our May-to-September jaunt is traversed on lush green fields in the spring, and they turn bristly and brownish as each summer winds down. What matters most is not the evolving terrain; it’s that the the guys stay the same, united in an impossible goal of mastering an impossible pastime. All we want is to hit the ball in each other’s company, and then go find it so we can see what the heck is going to happen next.