The ornamental design for a wirecutter, as shown and described.
FIG. 1 is a perspective view of a wire cutter according to my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a left side elevation view thereof;
FIG. 5 is a right side elevation view thereof;
FIG. 6 is a rear elevation view thereof;
FIG. 7 is a front elevation view thereof; and,
FIG. 8 is another top plain view thereof shown with a hand tool.
The broken lines of FIGS. 1-7 define the bounds and form no part of the claimed design. The broken lines of FIG. 8 illustrate environmental structure and form no part of the claimed design.