The ornamental design for a lighter, as shown and described.
FIG. 1 is a perspective view of the lighter embodying my new design;
FIG. 2 is a perspective view similar to FIG. 1 but illustrating the
opposite side edge, and
FIG. 3 is an exploded, perspective view similar in orientation to FIG. 1.
A bottom plan view would show a flat surface that is plain except for the
longitudinal edge notch and the circular end face of the elongated flint
contained therein.