I claim the ornamental design for the trim tool, as shown and described.
FIG. 1 is a top perspective view of the trim tool:
FIG. 2 is a bottom perspective view thereof;
FIG. 3 is a side view thereof;
FIG. 4 is a top view thereof;
FIG. 5 is a side view thereof showing the side opposite that shown in FIG. 3;
FIG. 6 is a rear view thereof;
FIG. 7 is a bottom view thereof; and,
FIG. 8 is a front view thereof.
In the figures, dashed lines are used to illustrate features of the trim tool which form no part of the claimed design. In the figures, dash-dot-dash lines are used to illustrate boundary lines between the claimed and unclaimed portions of the design.