aha!! 
use strict;
use warnings;

use XML::LibXML qw( );

my $parser = XML::LibXML->new();
$parser->keep_blanks(0);

print $parser->parse_fh(*DATA)->toString(@ARGV ? $ARGV[0] : 1);

__DATA__
<?xml version="1.0" encoding="UTF-8"?>
<config>
  <sites>
    <site>
      <sitename><![CDATA[www.example.com]]></sitename>
      <active><![CDATA[1]]></active>
      <rooturl><![CDATA[http://www.example.com.com/]]></rooturl>
      <name><![CDATA[Example]]></name>
    </site>
  <site><sitename>Test entry</sitename><name></name><rooturl><![CDATA[
+http://www.test.com.com/]]></rooturl><reportname><![CDATA[tes$
</config>

[download]
<?xml version="1.0" encoding="UTF-8"?>
<config>
  <sites>
    <site>
      <sitename><![CDATA[www.example.com]]></sitename>
      <active><![CDATA[1]]></active>
      <rooturl><![CDATA[http://www.example.com.com/]]></rooturl>
      <name><![CDATA[Example]]></name>
    </site>
    <site>
      <sitename>Test entry</sitename>
      <name/>
      <rooturl><![CDATA[http://www.test.com.com/]]></rooturl>
      <reportname><![CDATA[test report name]]></reportname>
    </site>
  </sites>
</config>

[download]

In reply to Re: xml::libxml open, add and save not formatting properly (pretty printing with libxml) by ikegami
in thread xml::libxml open, add and save not formatting properly by itsscott

Title:
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