Copyright for attr source package in Focal

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/

Files:
 *
Copyright:
 Copyright © 2000-2007 Silicon Graphics, Inc.
 Copyright © 2001-2003,2006-2007,2009 Andreas Gruenbacher
License: GPL-2+
 This program is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 2 of the License, or
 (at your option) any later version.
 .
 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 .
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see .
Comment:
 On Debian systems, the full text of the GNU General Public License
 can be found in '/usr/share/common-licenses/GPL-2'.

Files:
 include/*.h
 libattr/*.c
 libmisc/*.c
Copyright:
 Copyright © 2001-2005 Silicon Graphics, Inc.
 Copyright © 2002,2003,2006-2007,2009 Andreas Gruenbacher
License: LGPL-2+
 This program is free software: you can redistribute it and/or modify it
 under the terms of the GNU Lesser General Public License as published by
 the Free Software Foundation, either version 2.1 of the License, or
 (at your option) any later version.
 .
 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU Lesser General Public License for more details.
 .
 You should have received a copy of the GNU Lesser General Public License
 along with this program.  If not, see .
Comment:
 On Debian systems, the full text of the GNU Lesser General Public License
 can be found in '/usr/share/common-licenses/LGPL-2.1'.