Description:
------------
Key values are not correct in Locale's get_keywords function.

Reproduce code:
---------------
<?php
$keywords_arr = Locale::getKeywords(  'de_DE@currency=EUR;collation=PHONEBOOK;sort=PHONEBOOK'  );
if ($keywords_arr) {
    foreach( $keywords_arr as $key => $value){
        echo "$key = $value\n";
    }
}
?>

Expected result:
----------------
collation = PHONEBOOK
currency = EUR
sort = PHONEBOOK


Actual result:
--------------
collation = PHONEBOOK
currency = EUR
sort = ZZZZZZ