Description:
------------
When there are multiple uuencoded parts in the file processed by
mailparse_uudecode_all(), the outpath of the main file is released
multiple times which can result in a double-free, possibly
resulting in a segfault.


Test script:
---------------
<?php
$data = <<<'EOD'
begin 644 foo
`
end

begin 644 bar
`
end

EOD;
$stream = fopen('php://memory', 'w+');
fwrite($stream, $data);
rewind($stream);
$parsed = mailparse_uudecode_all($stream);
var_dump(count($parsed));
?>


Expected result:
----------------
int(3)

Actual result:
--------------
segfault