Copyright for gpsprune source package in Bionic

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: GpsPrune
Upstream-Contact: activityworkshop.net 
Source: https://activityworkshop.net/software/gpsprune/download.html

Files: *
Copyright: 2006-2016, activityworkshop.net 
License: GPL-2

Files: debian/*
Copyright: 2010-2014, David Paleino 
License: GPL-2

Files: tim/prune/function/srtm/gen/tiles*.txt
 tim/prune/function/srtm/srtmtiles.dat
Copyright: U.S. Geological Survey
License: public-domain
 srtmtiles.dat is generated by GenerateTileLookup.java, in the same
 directory, from the data available in the tiles*.txt files. This data
 is gathered from directory listings of a US government website, so it's
 PD.
 The website states:
   Most U.S. Geological Survey (USGS) information resides in the public domain
   and may be used without restriction. There is no legal requirement for users
   to acknowledge or credit USGS as the source for public domain information,
   but they may wish to do so as a courtesy.
 The tiles*.txt files can be re-generated with the debian/scripts/get-tiles.py
 script.

License: GPL-2
 This package is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License version 2 as
 published by the Free Software Foundation.
 .
 This package 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 package; if not, write to the Free Software
 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 .
 On Debian systems, the complete text of the GNU General Public License
 version 2 can be found in `/usr/share/common-licenses/GPL-2'.