Fix example

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@323620 c90b9560-bf6c-de11-be94-00142212c4b1

reference/apc/apciterator/construct.xml

@@ -91,7 +91,7 @@
     <programlisting role="php">
 <![CDATA[
 <?php
-foreach (new APCIterator('/^counter\./') as $counter) {
+foreach (new APCIterator('user', '/^counter\./') as $counter) {
     echo "$counter[key]: $counter[value]\n";
     apc_dec($counter['key'], $counter['value']);
 }