mkcephfs: Actually do a mkfs.btrfs
mkcephfs: Actually do a mkfs.btrfs

Signed-off-by: Wido den Hollander <be4891756a4fdc8c3c6609eb41e49789e971fe07@widodh.nl>
Signed-off-by: Tommi Virtanen <9ab2264cc7e4806727ef3fc8f99e05b759bbf6e0@dreamhost.com>

ajnelson/ceph,ajnelson/ceph,ajnelson/ceph,ajnelson/ceph,ajnelson/ceph,ajnelson/ceph