Alistair Coles 463e22a314 Add missing expirer recon metric to admin_guide
Add expirer/object to recon metrics, which reports such as:

$ curl -s http://localhost:6010/recon/expirer/object
{"object_expiration_pass": 0.19765901565551758, "expired_last_pass": 1}

Change-Id: Ia9a171c09efebe5ad56c9de2952a8f29188c4970
2016-12-01 10:32:19 +00:00
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