The ornamental design for a flashlight, as shown and described.
FIG. 1 is a perspective view of a flashlight.
FIG. 2 is another perspective view of the flashlight of FIG. 1.
FIG. 3 is a front view of the flashlight of FIG. 1.
FIG. 4 is a rear view of the flashlight of FIG. 1.
FIG. 5 is a right side view of the flashlight of FIG. 1.
FIG. 6 is a left side view of the flashlight of FIG. 1.
FIG. 7 is a top view of the flashlight of FIG. 1.
FIG. 8 is a bottom view of the flashlight of FIG. 1; and,
FIG. 9 is a partial section view, taken along line 9-9 shown in FIG. 3, and is included to further illustrate the shape of the surfaces of the flashlight.
The dash-dot broken lines represent an unclaimed boundary of the claimed design. All other broken lines show portions of the article not claimed. The broken lines form no part of the claimed design.