mrf: Fix stale MRF data showed in heal info (#14953)
mrf: Fix stale MRF data showed in heal info (#14953)

One usee reported having mc admin heal status output ETA increasing
by time. It turned out it is MRF that is not clearing its data due to a
bug in the code.

pendingItems is increased when an object is queued to be healed but
never decreasd when there is a healing error. This commit will decrease
pendingItems and pendingBytes even when there is an error to give
accurate reporting.
krisis/minio,donatello/minio,krisis/minio,donatello/minio,minio/minio,vadmeste/minio,balamurugana/minio,vadmeste/minio,balamurugana/minio,minio/minio