copyright revision 1.16 
11.9SuweCopyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
21.16Sjakllsch    2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
31.16Sjakllsch    2018 The NetBSD Foundation, Inc.  All rights reserved.
41.1SlukemCopyright (c) 1982, 1986, 1989, 1991, 1993
51.1Slukem    The Regents of the University of California.  All rights reserved.
6