Merge PR #22871 into master

* refs/pull/22871/head:
	deb/rpm: add python-six as build-time and run-time dependency

Reviewed-by: Lenz Grimmer <lgrimmer@suse.com>
Reviewed-by: Abhishek Lekshmanan <abhishek.lekshmanan@gmail.com>
Reviewed-by: Sebastian Wagner <swagner@suse.com>

diff --cc ceph.spec.in
Simple merge

diff --cc debian/control
Simple merge