We claim the ornamental design for a golf putter, as shown and described.
FIG. 1 is a top, heel side and rear perspective view of a golf putter.
FIG. 2 is a front elevation view of the golf putter of FIG. 1.
FIG. 3 is a rear elevation view of the golf putter of FIG. 1.
FIG. 4 is a side elevation view of a toe side of the golf putter of FIG. 1.
FIG. 5 is a side elevation view of a heel side of the golf putter of FIG. 1.
FIG. 6 is a top plan view of the golf putter of FIG. 1.
FIG. 7 is a bottom plan view of the golf putter of FIG. 1; and,
FIG. 8 is a bottom, heel side and rear perspective view of the golf putter of FIG. 1.
The broken lines in the drawings are for purpose of illustrating environmental structure as well as portions of the design that form no part of the present claimed design. The dash-dot broken lines represent the boundary and form no part of the claimed design.