doxygen comment for unflatten.c

diff --git a/cmd/tools/unflatten.c b/cmd/tools/unflatten.c
index ff5b6930134181f1f0801dd5910e034574b300c2..1e93e977dcfd2fd2738ec4109b1c333a96a80577 100644 (file)
--- a/cmd/tools/unflatten.c
+++ b/cmd/tools/unflatten.c
@@ -1,3 +1,8 @@
+/**
+ * @file
+ * @brief adjust directed graphs to improve layout aspect ratio
+ */
+
 /*************************************************************************
  * Copyright (c) 2011 AT&T Intellectual Property 
  * All rights reserved. This program and the accompanying materials