[Libguestfs] [PATCH] Add a prefix to output when tracing (RHBZ#673479).

[Richard W.M. Jones]

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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>From 21d41177fd8bc429f514227903329bc18bc33a64 Mon Sep 17 00:00:00 2001
From: Richard W.M. Jones <rjones at redhat.com>
Date: Fri, 28 Jan 2011 11:14:42 +0000
Subject: [PATCH] Add a prefix to output when tracing (RHBZ#673479).

---
 generator/generator_c.ml |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/generator/generator_c.ml b/generator/generator_c.ml
index 46ba691..5a38e0c 100644
--- a/generator/generator_c.ml
+++ b/generator/generator_c.ml
@@ -1,5 +1,5 @@
 (* libguestfs
- * Copyright (C) 2009-2010 Red Hat Inc.
+ * Copyright (C) 2009-2011 Red Hat Inc.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -729,7 +729,8 @@ check_state (guestfs_h *g, const char *caller)
       pr "\n"
     );
 
-    pr "    fprintf (stderr, \"%s\");\n" shortname;
+    pr "    fprintf (stderr, \"%%s: %%s: %%s\",\n";
+    pr "             \"libguestfs\", \"trace\", \"%s\");\n" shortname;
 
     (* Required arguments. *)
     List.iter (
-- 
1.7.3.5