The ornamental design for a spout, as shown and described.
FIG. 1 is a left, top, front perspective view of a spout embodying our new design;
FIG. 2 is a left side elevational view thereof, the right side elevational view thereof being a mirror image of the left side shown;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a front elevational view thereof; FIG. 6 is a rear elevational view thereof; and,
FIG. 6 is a rear elevational view thereof.
The dash-dash broken lines in the figures are for the purpose of illustrating unclaimed surfaces or environment of the design. The broken lines are thus not part of the claim.