doxygen comment for gv2gxl.c

diff --git a/cmd/tools/gv2gxl.c b/cmd/tools/gv2gxl.c
index 374d1226f32940676be00e84d50fc73f1568e03c..5f237ee65d917195d20d8ed3d9ec899536a67f45 100644 (file)
--- a/cmd/tools/gv2gxl.c
+++ b/cmd/tools/gv2gxl.c
@@ -1,3 +1,8 @@
+/**
+ * @file
+ * @brief DOT-<a href=https://en.wikipedia.org/wiki/GXL>GXL</a> convert subroutines
+ */
+
 /*************************************************************************
  * Copyright (c) 2011 AT&T Intellectual Property 
  * All rights reserved. This program and the accompanying materials