Copyright for corekeeper source package in Focal

Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: corekeeper
Upstream-Contact: Paul Wise 
Source: https://salsa.debian.org/debian/corekeeper.git
Comment: original package by Ben Pfaff has been rewritten

Files: *
Copyright: 2013 Paul Wise
License: ISC
 Permission to use, copy, modify, and/or distribute this software for
 any purpose with or without fee is hereby granted, provided that the
 above copyright notice and this permission notice appear in all copies.
 .
 THE SOFTWARE IS PROVIDED "AS IS" AND I DISCLAIM ALL WARRANTIES
 WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL I BE LIABLE FOR ANY
 SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.