ZendCache 2.8 sets $success on getItem if there is a null response

[panvid]

If you use the getItem function from Storage/Adapter/AbstractAdapter you have the $success reference to check whether it succeed or not. This attribute is also true if the getItem responseded null (getting the item failed)`.

In previous ZendCache 2.7 it works perfectly.

Code to reproduce the issue

$item = $this->cache->getItem('someCacheKey', $success);

# $success is true but the $item is null

Expected results

The $success attribute is needed to know whether a $item is found or not, so it should be false.

[weierophinney]

Fixed with #166/#167