Zend_Search_Lucene: Fix for MultiSearcher optimize() call. ZF-8289.

git-svn-id: http://framework.zend.com/svn/framework/standard/trunk@19638 44c647ce-9c0f-0410-b52a-842ac1e357ba

library/Zend/Search/Lucene/MultiSearcher.php

@@ -851,7 +851,7 @@ class Zend_Search_Lucene_Interface_MultiSearcher implements Zend_Search_Lucene_I
     public function optimize()
     {
         foreach ($this->_indices as $index) {
-            $index->_optimise();
+            $index->optimise();
         }
     }