Update incompatible.xml Fix a method names

Author: mmalferov

appendices/migration85/incompatible.xml

@@ -332,8 +332,8 @@
 
   <simpara>
    Attempting to call <methodname>PDOStatement::setFetchMode</methodname> during
-   a call to <methodname>PDO::fetch</methodname>,
-   <methodname>PDO::fetchObject</methodname>,
+   a call to <methodname>PDOStatement::fetch</methodname>,
+   <methodname>PDOStatement::fetchObject</methodname>,
    <methodname>PDOStatement::fetchAll</methodname>, for example using tricks such as
    passing the statement object as a constructor argument when fetching into an
    object, will now throw an <exceptionname>Error</exceptionname>.