[PATCH libX11] docbook: Don't use --nonet in XSLTPROC_FLAGS

[Jeremy Huddleston]

> This is what I observed as well. The xsltproc flags were derived from
> the xsltproc command
> issued by xmlto which is just a wrapper srcipt.

It looks like a problem with the catalog installed with docbook-xsl-1.76.1 ... ugg... I hate generating docs.

<?xml version="1.0" encoding="utf-8"?>
<catalog xmlns="urn:oasis:names:tc:entity:xmlns:xml:catalog">
  <!-- XML Catalog file for DocBook XSL Stylesheets v1.76.1 -->
  <rewriteURI uriStartString="http://docbook.sourceforge.net/release/xsl/current/" rewritePrefix="./"/>
  <rewriteSystem systemIdStartString="http://docbook.sourceforge.net/release/xsl/current/" rewritePrefix="./"/>
  <rewriteURI uriStartString="http://docbook.sourceforge.net/release/xsl/1.76.1/" rewritePrefix="./"/>
  <rewriteSystem systemIdStartString="http://docbook.sourceforge.net/release/xsl/1.76.1/" rewritePrefix="./"/>
</catalog>