bug in dZip.inc.php

The lib supports to add a string to the zip file.

Syntax:

require_once("dZip.inc.php");


$zip = new dZip("filename.zip");
$zip->addFile(false,'dir/filenameinzip', '',"the data");
$zip->save();

But there is a bug:

Line 39 should be:
$details['uncsize'] = strlen($data);