The ornamental design for a garment, as shown and described.
FIG. 1 is a first side rear perspective view of a garment showing my design;
FIG. 2 is a rear view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a first side view thereof;
FIG. 5 is a second side view thereof; and,
FIG. 6 is a top view thereof.
The long-and-short broken lines represent boundaries of the claim that form no part of the claim, while the even-length broken lines are directed to environment. The broken lines form no part of the claimed design.