The ornamental design for a vacuumcleaner, as shown and described.
FIG. 1 is a front perspective view of a vacuum cleaner showing our new design;
FIG. 2 is a front view thereof;
FIG. 3 is a left side view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is an enlarged top view of the vacuum cleaner;
FIG. 6 is an enlarged view of the vacuum cleaner shown within the area designated as 6 in FIG. 1; and,
FIG. 7 is an enlarged view of the vacuum cleaner shown within the area designed as 7 in FIG. 2.
The details of the vacuum cleaner shown in broken lines form no part of the claimed design. The dot-dashed broken line in FIGS. 1-2 and 6-7 show the boundary of the enlarged view and forms no part of the claimed design.