The big news at the recent CFDA fashion awards? The man who put Carol Burnett and Cher in sequin heaven still has his sparkle. Bob Mackie’s anti-minimalist creations, right in line with this summer’s return to glitter, earned him an award for ”fashion exuberance.” In a purple Mackie gown with matching feather coat, a gushy Diana Ross presented the award to her longtime clothier — though she seemed aware of the fashion risks of over-the-top dressing: ”Do I have feathers under my arms?”