How do you terminate the end of the ridge vent?

Here is some information for terminating the end of the ridge vent.

All ShingleVent II and VenturiVent Plus ridge vent pieces have an integral molded-in end plug. Every 4-foot piece of the ridge vent has an end-plug on both ends so that any piece can be used as an end. Cut the length of the 4-foot stick needed to finish the project and be sure to orient it so that the end-plug faces the end of the ridge. The end-plug is designed to maintain a radius so that when the ridge vent is installed over steep roof pitches the ridge vent will not come to a point at the top and potentially crack the ridge cap shingles installed on top of the vent.