Index: query.php
===================================================================
--- query.php	(revision 42180)
+++ query.php	(working copy)
@@ -63,6 +63,8 @@
 /**
  * Set query variable.
  *
+ * set_query_var() is a wrapper function to the global $wp_query that uses the method set.
+ *
  * @since 2.2.0
  *
  * @global WP_Query $wp_query Global WP_Query instance.