doxygen comments for cmd/dot

diff --git a/cmd/dot/dot.c b/cmd/dot/dot.c
index 21b29d7301dec9a5f00ea940cdce2eb167518375..df2c64540f7f1550621202c89f5ebef89fffe7f2 100644 (file)
--- a/cmd/dot/dot.c
+++ b/cmd/dot/dot.c
@@ -1,3 +1,8 @@
+/**
+ * @file
+ * @brief main rendering program for various layouts of graphs and output formats
+ */
+
 /*************************************************************************
  * Copyright (c) 2011 AT&T Intellectual Property 
  * All rights reserved. This program and the accompanying materials
@@ -92,3 +97,8 @@ int main(int argc, char **argv)
     r = gvFreeContext(Gvc);
     graphviz_exit(MAX(rc,r));
 }
+
+/**
+ * @dir .
+ * @brief main rendering program for various layouts of graphs and output formats
+ */