Inline documentation for hooks in wp-admin/tool.php.

Props dougwollison for the initial patch.
Fixes #25496.


git-svn-id: https://develop.svn.wordpress.org/trunk@25937 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-admin/tools.php

@@ -64,6 +64,11 @@ if ( current_user_can($cats->cap->manage_terms) || current_user_can($tags->cap->
 endif;
 endif;
 
+/**
+ * Fires at the end of the Tools Administration screen.
+ *
+ * @since 2.8.0
+ */
 do_action( 'tool_box' );
 ?>
 </div>