osd: re-indent some code in _process_pg_info
osd: re-indent some code in _process_pg_info

Re-indent the code and add a comment.

Signed-off-by: Colin McCabe <c0eabe2887ac1e91c280795b9fca010e21066283@hq.newdream.net>

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