Fix output of command 'ceph osd tree --format=json'

Two values which were suppose to be part of the osd array were being printed after the osd section was closed which resulted in output like this,

        { "id": 19,
          "name": "osd.19",
          "exists": 1,
          "type": "osd",
          "type_id": 0,
          "status": "up",
          "reweight": "1.000000"},
        "1.000000",
        3,

New output now looks like this,

        { "id": 19,
          "name": "osd.19",
          "exists": 1,
          "type": "osd",
          "type_id": 0,
          "status": "up",
          "reweight": "1.000000",
          "crush_weight": "1.000000",
          "depth": 3},