--- drupal6\modules\system\system.module	Mon Nov 10 17:04:22 2008
+++ drupal6\modules\system\system.module	Mon Nov 10 16:58:01 2008
@@ -1020,8 +1020,17 @@
 }
 
 /**
- * Add default buttons to a form and set its prefix.
+ * Takes a form and adds 'Save configuration' and 'Reset to defaults' buttons
+ * at the bottom. Passes all form fields to the variable_set function. Can be
+ * used to quickly create a form handler on an administration page without the
+ * need to write a submit handler (this is handled automatically by
+ * system_settings_form_submit().
  *
+ * For example, if you create a form field called 'myform_foo', when the form
+ * is saved, a variable called 'myform_foo' is created. For this reason, you
+ * should prefix all of the form fields with your module's name, so as to avoid
+ * namespace collisions (two modules creating a variable with the same name).
+ *
  * @ingroup forms
  * @see system_settings_form_submit()
  * @param $form