Description:
------------
strnatcmp returns wrong results when one string is ending with a zero. At leat in php 5.2.9 the expected result is returned. In php 5.3.0 and 5.2.10 it is broken.

Reproduce code:
---------------
<?php
echo strnatcmp('b0',  'b0$')  . "\n";
echo strnatcmp('b1',  'b1$')  . "\n";
echo strnatcmp('b0x', 'b0x$') . "\n";

echo strnatcasecmp('b0',  'B0$')  . "\n";
echo strnatcasecmp('b1',  'B1$')  . "\n";
echo strnatcasecmp('b0x', 'B0x$') . "\n";


Expected result:
----------------
-1
-1
-1
-1
-1
-1

Actual result:
--------------
1
-1
-1
1
-1
-1