Zend_Cache: minor update for ZF-9738 fix.

git-svn-id: http://framework.zend.com/svn/framework/standard/trunk@21973 44c647ce-9c0f-0410-b52a-842ac1e357ba

library/Zend/Cache.php

@@ -221,7 +221,7 @@ abstract class Zend_Cache
         $name = str_replace(array('-', '_', '.'), ' ', $name);
         $name = ucwords($name);
         $name = str_replace(' ', '', $name);
-        if (strpos($name, 'ZendServer') === 0) {
+        if (stripos($name, 'ZendServer') === 0) {
             $name = 'ZendServer_' . substr($name, strlen('ZendServer'));
         }