Merge pull request #3739 from athanatos/wip-10840

PG,ReplicatedPG: make missing_digests local to scrub_compare_maps

Reviewed-by: Sage Weil <sage@redhat.com>

diff --cc src/osd/PG.cc
Simple merge

diff --cc src/osd/PG.h
Simple merge

diff --cc src/osd/ReplicatedPG.cc
Simple merge

diff --cc src/osd/ReplicatedPG.h
Simple merge