upgragde lib/ortho/fPQ.h comment to doxygen style

diff --git a/lib/ortho/fPQ.h b/lib/ortho/fPQ.h
index ae39455b0778f02270c9c62c3e3c8ba98daf5453..40bb68d7d59e47c27fc6af3098950fc3f6503f78 100644 (file)
--- a/lib/ortho/fPQ.h
+++ b/lib/ortho/fPQ.h
@@ -1,3 +1,8 @@
+/**
+ * @file
+ * @brief @ref snode priority queue for @ref shortPath in @ref sgraph
+ */
+
 /*************************************************************************
  * Copyright (c) 2011 AT&T Intellectual Property 
  * All rights reserved. This program and the accompanying materials
@@ -8,8 +13,6 @@
  * Contributors: Details at https://graphviz.org
  *************************************************************************/
 
-/* Priority Queue Code for shortest path in graph */
-
 #include <ortho/sgraph.h>
 
 #define N_VAL(n) (n)->n_val