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

Files: *
Copyright: 2010-2017 Trevor L Davis 
License: GPL-2+

File: exec/example.R
Copyright: 2008 Allen Day  
           2010-2013 Trevor L Davis 
License: GPL-2+

File: exec/display_file.R
Copyright: 2010-2013 Trevor L Davis
           2013 Kirill Müller
License: GPL-2+

File: NEWS
Copyright: 2012-2013 Trevor L Davis
           2013 Kirill Müller

File: inst/tests/test-optparse.R
Copyright: 2008 Allen Day  
           2010-2013 Trevor L Davis 
           2013 Kirill Müller
           2015 Rich FitzJohn
License: GPL-2+

File: R/optparse-package.R
Copyright: 2008 Allen Day  
           2010-2013 Trevor L Davis 
License: GPL-2+

File: R/optparse.R 
Copyright: 1990-2009 Python Software Foundation
           2011-2017 Trevor L Davis 
           2010 Steve Lianoglou
           2011 Jim Nikelski
           2013 Kirill Müller
           2014 Peter Humburg
           2015 Rich FitzJohn
License:  GPL-2+ and Python-2.6.2
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