The ornamental design for a doggarment, as shown and described.
FIG. 1 is a right perspective view of a dog garment, showing my new design in condition of use;
FIG. 2 is a top, front, left perspective view of the dog garment of FIG. 1, shown enlarged for clarity of disclosure;
FIG. 3 is a top, rear, left perspective view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a front elevational view thereof;
FIG. 7 is a rear elevational view thereof;
FIG. 8 is a top plan view thereof; and,
FIG. 9 is a bottom plan view thereof.
The broken lines depict environmental subject matter only and form no part of the claimed design. The broken line on the garment depicts stitching and forms no part of the claimed design.