* Cabrera tests positive for testosterone * Will miss early playoff run should Giants qualify (Adds quotes, detail) Aug 15 - The San Francisco Giants' pursuit of adeep run into the postseason suffered a jolt Wednesday whenAll-Star outfielder Melky Cabrera was suspended for 50 gameswithout pay after testing positive for testosterone. The 28-year-old from the Dominican Republic, the mostvaluable player in this year's All-Star game, was hit with theban for violating MLB's drug prevention and treatment program. ...