Index: includes/common.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/common.inc,v
retrieving revision 1.756.2.91
diff -u -r1.756.2.91 common.inc
--- includes/common.inc	30 Jun 2010 11:14:14 -0000	1.756.2.91
+++ includes/common.inc	26 Jul 2010 11:55:09 -0000
@@ -2839,9 +2839,11 @@
 
 
 /**
- * This dispatch function hands off structured Drupal arrays to type-specific
- * *_alter implementations. It ensures a consistent interface for all altering
- * operations.
+ * Hands off alterable variables to type-specific *_alter implementations.
+ *
+ * This dispatch function hands off the passed in variables to type-specific
+ * hook_TYPE_alter() implementations in modules. It ensures a consistent
+ * interface for all altering operations.
  *
  * @param $type
  *   The data type of the structured array. 'form', 'links',