Copyright for flex-old source package in Focal

This is the Debian GNU/Linux prepackaged old version of flex, the GNU lexical
analyzer generator.

This package was first put together by Robert Leslie .
It is currently maintained by Tommi Vainikainen ,
who took over from Manoj Srivastava ,
who took over from Santiago Vila , 
and it is built from sources obtained from:

http://flex.sourceforge.net/

The message catalogs in the `po' directory were taken from the
Free Translation Project at:

http://www.iro.umontreal.ca/contrib/po/maint/flex

and are copyrighted by the Free Software Foundation. According to the FSF,
they are meant to be distributed under the same license as flex itself.

Copyright:

  Flex carries the copyright used for BSD software, slightly modified
  because it originated at the Lawrence Berkeley (not Livermore!) Laboratory,
  which operates under a contract with the Department of Energy:

	Copyright (c) 1990 The Regents of the University of California.
	All rights reserved.

	This code is derived from software contributed to Berkeley by
	Vern Paxson.

	The United States Government has rights in this work pursuant
	to contract no. DE-AC03-76SF00098 between the United States
	Department of Energy and the University of California.

	Redistribution and use in source and binary forms are permitted
	provided that: (1) source distributions retain this entire
	copyright notice and comment, and (2) distributions including
	binaries display the following acknowledgement:  ``This product
	includes software developed by the University of California,
	Berkeley and its contributors'' in the documentation or other
	materials provided with the distribution and in all advertising
	materials mentioning features or use of this software.  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.

	THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
	IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
	WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	PURPOSE.

  This basically says "do whatever you please with this software except
  remove this notice or take advantage of the University's (or the flex
  authors') name".

  Note that the "flex.skl" scanner skeleton carries no copyright notice.
  You are free to do whatever you please with scanners generated using flex;
  for them, you are not even bound by the above copyright.