ceph_objectstore_tool: In error case umount objectstore

Signed-off-by: David Zafman <dzafman@redhat.com>
ceph_objectstore_tool: For terminal output of list one object per line

Instead of a parsable array make it easier to cut and paste listed objects

Signed-off-by: David Zafman <dzafman@redhat.com>
ceph_objectstore_tool: BUG: --op list wasn't including snapshots

Signed-off-by: David Zafman <dzafman@redhat.com>
ceph_objectstore_tool: Strip _* (always _head) from pgid in list entry output

Signed-off-by: David Zafman <dzafman@redhat.com>