copyright revision 1.21 
11.21SsimonbCopyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
21.21Ssimonb    2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013,
31.21Ssimonb    2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023
41.20Sjnemeth    The NetBSD Foundation, Inc.  All rights reserved.
51.1SlukemCopyright (c) 1982, 1986, 1989, 1991, 1993
61.1Slukem    The Regents of the University of California.  All rights reserved.
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