The ornamental design for a bandage, as shown and described.
FIG. 1 is a top view of a bandage of my design.
FIG. 2 is a first side view of the bandage of FIG. 1.
FIG. 3 is a second side view of the bandage of FIG. 1.
FIG. 4 is a third side view of the bandage of FIG. 1.
FIG. 5 is a fourth side view of the bandage of FIG. 1; and,
FIG. 6 is a bottom view of the bandage of FIG. 1.
The broken lines shown in FIGS. 1-6 illustrate portions of the bandage that form no part of the claimed design. The dash-dot-dash-dot lines illustrate boundaries that form no part of the claimed design.