changelog-4.0.xml:

  Fix bad root element name in DOCTYPE.  Sheesh.


Docs/changelog-4.0.xml:
  Fix bad root element name in DOCTYPE.  Sheesh.

Docs/changelog-4.0.xml

 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
+<!DOCTYPE appendix PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
 "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd">
 <!--
 This is a dummy changelog file. Don't use it yet.