Remove emacs properties block from end of file.

doc/src/sgml/refentry.sgml

 <!doctype refentry PUBLIC "-//Davenport//DTD DocBook V3.0//EN">
-
-<!-- Keep this comment at the end of the file
-Local variables:
-mode: sgml
-sgml-omittag:nil
-sgml-shorttag:t
-sgml-minimize-attributes:nil
-sgml-always-quote-attributes:t
-sgml-indent-step:1
-sgml-indent-data:t
-sgml-parent-document:nil
-sgml-default-dtd-file:"./reference.ced"
-sgml-exposed-tags:nil
-sgml-local-catalogs:"/usr/lib/sgml/CATALOG"
-sgml-local-ecat-files:nil
-End:
--->