The ornamental design for a cleaningtool, as shown and described.
FIG. 1 is a perspective view of a cleaning tool showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom view thereof;
FIG. 4 is a side elevational view thereof;
FIG. 5 is a front elevational view thereof; and,
FIG. 6 is a rear elevational view thereof.
The side elevational view not illustrated is mirror image of the side elevational views illustrated in FIG. 4 and the broken line showings form no part of the claimed design.