Fix FQCN in docblocks.

src/Database/Expression/QueryExpression.php

@@ -699,7 +699,7 @@ class QueryExpression implements ExpressionInterface, Countable
     /**
      * Returns the type name for the passed field if it was stored in the typeMap
      *
-     * @param string|Cake\Database\Expression\QueryExpression $field The field name to get a type for.
+     * @param string|\Cake\Database\Expression\QueryExpression $field The field name to get a type for.
      * @return string|null The computed type or null, if the type is unknown.
      */
     protected function _calculateType($field)

src/Routing/Filter/RoutingFilter.php

@@ -43,7 +43,7 @@ class RoutingFilter extends DispatcherFilter
      * If Routes have not been loaded they will be loaded, and config/routes.php will be run.
      *
      * @param \Cake\Event\Event $event containing the request, response and additional params
-     * @return void|Cake\Network\Response A response will be returned when a redirect route is encountered.
+     * @return \Cake\Network\Response|null A response will be returned when a redirect route is encountered.
      */
     public function beforeDispatch(Event $event)
     {