THE SUN IS GETTING HARDER TO FOLLOW SPORTS Michael Posner Golf is a game for pretenders: you are not an 18-handicap duffer, but Johnny Miller. If you sink this tortuous, 35-foot putt, with the hushed gallery looking on, you win the Masters, the British Open, the Grand Slam. Keep your head down and knock the little white ball into the round hole. Remember to smile when the tournament director hands you a cheque for $50,000. Play four fine rounds of golf and you become the idol of millions.