error in example 4.3.2 with dangling p:pipeline element

4.3.2 Example
<p:viewport match="h:div[@class='chapter']"
            xmlns:h="http://www.w3.org/1999/xhtml">
  <p:insert at-start="true">
    <p:input port="insertion">
      <p:inline>
        <hr xmlns="http://www.w3.org/1999/xhtml"/>
      </p:inline>
    </p:input>
  </p:insert>
</p:viewport>

</p:pipeline>

has a 'dangling' p:pipeline

cheers, Jim Fuller