Copyright for hgsubversion source package in Focal

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: hgsubversion
Source: http://bitbucket.org/durin42/hgsubversion

Files: *
Copyright: 2011, Augie Fackler 
License: GPL-2

Files: debian/*
Copyright: 2011, Qijiang Fan 
License: GPL-2

License: GPL-2
 On Debian systems, the complete text of the GNU General
 Public License version 2 can be found in "/usr/share/common-licenses/GPL-2"