The ornamental design for a correctionroller, as shown and described.
FIG. 1 is a front left perspective view of the correction roller (shown with the front portion extended and the tip in broken lines) according to the new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a left elevation view thereof;
FIG. 7 is a right elevation view thereof;
FIG. 8 is a front left perspective view of the correction roller (shown with the front portion in an alternate folded position) according to the new design;
FIG. 9 is a front elevation view thereof;
FIG. 10 is a rear elevation view thereof;
FIG. 11 is a top plan view thereof;
FIG. 12 is a bottom plan view thereof (shown with the tip in broken lines);
FIG. 13 is a left elevation view thereof; and,
FIG. 14 is a right elevation view thereof.
The broken lines showing the tip of the correction roller serve the purpose of illustrative example and form no part of the claimed design.