Description:
------------
see test script.



Test script:
---------------
<?php

function foo() {
    try { return chr(0) . "bar"; }
    finally { return chr(32) . "bad"; }
}

var_dump(foo());
?>

Expected result:
----------------
none memleak

Actual result:
--------------
$ sapi/cli/php /tmp/1.php
string(4) " bad"

[Mon Aug 10 21:21:03 2015]  Script:  '/tmp/1.php'
/home/huixinchen/opensource/trunk/Zend/zend_string.h(121) :  Freeing 0x7F1086059CC0 (32 bytes), script=/tmp/1.php
=== Total 1 memory leaks detected ===