The ornamental design for a doggiescoop, as shown and described.
FIG. 1 is a ¾ perspective view of the invention;
FIG. 2 is a top view thereof;
FIG. 3 is a bottom view thereof;
FIG. 4 is a right side view thereof,
FIG. 5 is a left side view thereof;
FIG. 6 is a front view thereof;
FIG. 7 is a back view thereof; and,
FIG. 8 is a ¾ perspective view thereof wherein the broken lines are for illustrative and environment purposes only and form no part of the claimed design.