Merge branch '6.4' into 7.0

* 6.4:
  Fix typo

Author: javiereguiluz

console/input.rst

@@ -378,7 +378,7 @@ Testing the Completion script
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 The Console component comes with a special
-:class:`Symfony\\Component\\Console\\Tester\\CommandCompletionTester`` class
+:class:`Symfony\\Component\\Console\\Tester\\CommandCompletionTester` class
 to help you unit test the completion logic::
 
     // ...