Index: common.inc
===================================================================
--- common.inc	(revision 28)
+++ common.inc	(working copy)
@@ -2313,6 +2313,8 @@
 
 
 /**
+ * Hands off structured Drupal arrays to type-specific *_alter implementations.
+ * 
  * This dispatch function hands off structured Drupal arrays to type-specific
  * *_alter implementations. It ensures a consistent interface for all altering
  * operations.