typo change

src/Faker/ORM/Doctrine/Populator.php

@@ -51,7 +51,7 @@ public function addEntity($entity, $number, $customColumnFormatters = array(), $
     /**
      * Populate the database using all the Entity classes previously added.
      *
-     * @param EntityManager $entityManager A Propel connection object
+     * @param EntityManager $entityManager A Doctrine connection object
      *
      * @return array A list of the inserted PKs
      */