[PATCH] Improve public domain dedication language.

[Richard Fontana]

A friend contacted me about the legal header in these two files,
arguing that it "makes very little sense", I think because of the
juxtaposition of the copyright notice with the public domain
assertion. Following one of his suggestions I replaced it with a
reference to CC0.

Signed-off-by: Richard Fontana <rfontana@redhat.com>
---
 includes/sys/sdt.h | 6 +++---
 sdt_types.h        | 5 +++--
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/includes/sys/sdt.h b/includes/sys/sdt.h
index eff315b..9bb7b5d 100644
--- a/includes/sys/sdt.h
+++ b/includes/sys/sdt.h
@@ -1,7 +1,7 @@
 /* <sys/sdt.h> - Systemtap static probe definition macros.
-   Copyright (C) 2010-2011 Red Hat Inc.
-
-   This file is part of systemtap, and is free software in the public domain.
+   
+   This file is dedicated to the public domain, pursuant to CC0
+   (https://creativecommons.org/publicdomain/zero/1.0/)
 */
 
 #ifndef _SYS_SDT_H
diff --git a/sdt_types.h b/sdt_types.h
index e2b76a4..a54d4c2 100644
--- a/sdt_types.h
+++ b/sdt_types.h
@@ -1,6 +1,7 @@
-/* Copyright (C) 2005-2011 Red Hat Inc.
+/* 
 
-   This file is part of systemtap, and is free software in the public domain.
+   This file is dedicated to the public domain, pursuant to CC0
+   (https://creativecommons.org/publicdomain/zero/1.0/)
 */
 
 #ifndef _SDT_TYPES_H
-- 
2.9.4