The ornamental design for a container spout, as shown and described.
FIG. 1 is a top view of a first embodiment of a container spout showing my new design;
FIG. 2 is a top view of a second embodiment thereof;
FIG. 3 is a top view of a third embodiment thereof;
FIG. 4 is a front elevational view, with the rear view being a mirror image, of any of the first, second, or third embodiments thereof; and,
FIG. 5 is a right side elevational view, with the left side being a mirror image, any of the first, second, or third embodiments thereof.
The broken line showing of the portion of the lid in FIGS. 1–5 depicts environmental subject matter only, merely showing the types of lids that can be used, and forms no part of the claimed design. The broken line showing of the container and straw in FIGS. 4 and 5 depict environmental subject matter only and form no part of the claimed design.