including a customized en.xml file

["Anthony Ettinger" <anthony@chovy.com>]

I'd like to keep the same file path hierarchy in my customization
layer, but I am getting an error when I try to include or import the
en.xml file locally. It works fine if I drop the markup directly in
custom.xsl

http://www.sagehill.net/docbookxsl/CustomGentext.html

This is what I have tried:

custom.xml:

<xsl:include href="en.xml" />

en.xml (customized version):

<?xml version="1.0" encoding="US-ASCII"?>
<l:l10n
    xmlns:l="http://docbook.sourceforge.net/xmlns/l10n/1.0";
    language="en" english-language-name="English">


    <xsl:param name="local.l10n.xml" select="document('')"/>
<l:context name="xref-number-and-title">
      <l:template name="chapter" text="Chapter %n: &#8220;%t&#8221;"/>
    </l:context>
</l:l10n>


-- 
Anthony Ettinger
Ph: 408-656-2473
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