The ornamental design for a spoiler, as shown and described.
FIG. 1 is a front right three-quarter view of a spoiler for a vehicle according to the present invention.
FIG. 2 is a rear left three-quarter view of the spoiler shown in FIG. 1.
FIG. 3 is a front view thereof.
FIG. 4 is a rear view thereof.
FIG. 5 is a right side view thereof.
FIG. 6 is a left side view thereof.
FIG. 7 is a top view thereof; and,
FIG. 8 is a rear three-quarter perspective view of the spoiler shown in FIG. 1, with the spoiler mounted on a vehicle shown in de-emphasized and half-tone portions so as to illustrate environmental structures for the vehicle rear. These portions form no part of the claimed invention. More particularly, in FIG. 8, the spoiler of the present invention is shown within the broken lines, and any elements shown outside of the broken lines form no part of the claimed invention, but are instead included to show environmental aspects of the claimed invention.