FILA, the international wrestling federation, has announced a change in the scoring of the gut wrench, one of the most common and successful moves in freestyle and Greco-Roman wrestling.    The FILA Bulletin No. 164-165, 2000 has the following information:    "Gut Wrench: 1 point"    "In the future, the value assigned to the gut wrench will be 1 point only, instead of 2 points as was the case until the Sydney Olympics."