The ornamental design for a garment, as shown and described.
FIG. 1 is a rear view of a garment showing my design;
FIG. 2 is a rear perspective view thereof;
FIG. 3 is a side view thereof; and,
FIG. 4 is a front perspective view thereof.
The long and short broken lines form the boundaries of the design and form no part of the claimed design. The even-length broken lines, which show the remainder of the article, are directed to environment, represent unclaimed subject matter, and form no part of the claimed design.