Description:
------------
I've got a specific, properly formatted (as far as I can tell) RSS file that breaks the XML parser.

Reproduce code:
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<?php
$url="http://130.89.22.201/break.rss";
$data=@fread(fopen("$url","r"),140000) or die("Cant open $url!");
$myar=getXmlData($data);
function getXmlData($xml_doc) {
        $parser = xml_parser_create();
        xml_parse_into_struct($parser,$xml_doc,$vals,$index) or die(xml_error_string(xml_get_error_code($parser)));
        xml_parser_free($parser);
}
?>

Expected result:
----------------
I expect it not to produce "Invalid document end" with the rss file (http://130.89.22.201/break.rss)

Actual result:
--------------
It procudes "Invalid document end" :P

Somehow it seems to do with the total size of the RSS file but I've parsed way bigger files.