FIG. 1 is a perspective view of a multipattern sprinkler showing our new design; FIG. 2 is a top plan view thereof; FIG. 3 is a front elevational view showing my new design; FIG. 4 is a right side elevational view thereof, FIG. 5 is a left side elevational view thereof; and, FIG. 6 is a rear elevational view thereof. The bottom view is unornamented and forms no part of the claimed design.