The ornamental design for a splitcover, as shown and described.
FIG. 1 is a front perspective view of a split cover showing the new design;
FIG. 2 is a back perspective view of the split cover of FIG. 1;
FIG. 3 is a side view of the split cover of FIG. 1;
FIG. 4 is an opposite side view of the split cover of FIG. 1;
FIG. 5 is a top plan view of the split cover of FIG. 1;
FIG. 6 is a bottom plan view of the split cover of FIG. 1;
FIG. 7 is a side-elevation view of the split cover of FIG. 1;
FIG. 8 is a side-elevation view of the split cover of FIG. 1; and,
FIG. 9 is a side-elevation view of the split cover of FIG. 1.
The broken lines shown on the split cover illustrate unclaimed portions of the claimed design and form no part of the claimed design. The protrusions shown in FIGS. 1, 2, 3, 4, 7, 8, and 9 are to show environment and form no part of the claimed design.