Copyright/licence updates and remove all traces of sys/cdefs.h

This change updates the BSD licence to the three-clause version since
NetBSD has already done so.  This makes dash GPL-compatible.

It also adds Christos Zoulas (NetBSD ash maintainer) to the COPYING file.
I've added "copyright by Herbert Xu" to most files.

Finally all CVS IDs and inclusion of sys/cdefs.h have been removed.
The latter is needed for support of klibc.

1 files changed, 3 insertions, 6 deletions

diff --git a/src/funcs/popd b/src/funcs/popd
index b2b65d5..7bccf50 100644
--- a/src/funcs/popd
+++ b/src/funcs/popd
@@ -1,6 +1,7 @@
-#	$NetBSD: popd,v 1.7 1995/05/11 21:31:13 christos Exp $
 # Copyright (c) 1991, 1993
 #	The Regents of the University of California.  All rights reserved.
+# Copyright (c) 1997-2005
+#	Herbert Xu <herbert@gondor.apana.org.au>.  All rights reserved.
 #
 # This code is derived from software contributed to Berkeley by
 # Kenneth Almquist.
@@ -13,11 +14,7 @@
 # 2. Redistributions in binary form must reproduce the above copyright
 #    notice, this list of conditions and the following disclaimer in the
 #    documentation and/or other materials provided with the distribution.
-# 3. All advertising materials mentioning features or use of this software
-#    must display the following acknowledgement:
-#	This product includes software developed by the University of
-#	California, Berkeley and its contributors.
-# 4. Neither the name of the University nor the names of its contributors
+# 3. Neither the name of the University nor the names of its contributors
 #    may be used to endorse or promote products derived from this software
 #    without specific prior written permission.
 #