update phpdoc and remove unneeded tags

php/cl_contactform_input.php

@@ -2,6 +2,7 @@
 /**
  * Module cl-contactform input
  *
+ * @package module/cl_contactform
  * @author Ortwin Pinke <info@php-backoffice.de>
  *
  * based on w3concepts.form.v1 from Andreas Kummer (2004-08-20)