Preheat oven to 425°. Mix seasonings; sprinkle over pork. In a large nonstick skillet, heat butter over medium heat; brown tenderloins on all sides. Transfer to a foil-lined 15x10x1-in. pan. Roast 10 minutes., Meanwhile, for glaze, in same skillet, mix syrup, vinegar and mustard; bring to a boil, stirring to loosen browned bits from pan. Cook and stir until slightly thickened, 1-2 minutes; remove from heat., Brush 1 tablespoon glaze over pork; continue roasting until a thermometer inserted in pork reads 145°, 7-10 minutes, brushing halfway through with remaining glaze. Let stand 5 minutes before slicing.