Minor documentation addition

core/lib/list.h

@@ -64,7 +64,7 @@
  *
  * Author: Adam Dunkels <adam@sics.se>
  *
- * $Id: list.h,v 1.2 2008/10/15 14:17:28 nvt-se Exp $
+ * $Id: list.h,v 1.3 2009/05/06 15:07:35 adamdunkels Exp $
  */
 #ifndef __LIST_H__
 #define __LIST_H__
@@ -80,6 +80,10 @@
  * being a pointer. This pointer is used by the linked list library to
  * form the linked lists.
  *
+ * The list variable is declared as static to make it easy to use in a
+ * single C module without unnecessarily exporting the name to other
+ * modules. 
+ *
  * \param name The name of the list.
  */
 #define LIST(name) \