upgpkg: python-pygit2 0.21.0-0


git-svn-id: file:///srv/repos/svn-community/svn@113685 9fca08f4-af9d-4005-b8df-a31f2cc04f65
archrelease: copy trunk to community-staging-i686, community-staging-x86_64

git-svn-id: file:///srv/repos/svn-community/svn@113686 9fca08f4-af9d-4005-b8df-a31f2cc04f65