Merge pull request #13111 from cbodley/wip-rgw-mdlog-trim

rgw multisite: automated mdlog trimming

Reviewed-by: Yehuda Sadeh <yehuda@redhat.com>

diff --cc src/rgw/rgw_admin.cc
Simple merge

diff --cc src/rgw/rgw_cr_rados.cc
Simple merge

diff --cc src/rgw/rgw_cr_rados.h
Simple merge

diff --cc src/rgw/rgw_data_sync.cc
Simple merge

diff --cc src/rgw/rgw_rados.cc
Simple merge

diff --cc src/rgw/rgw_rados.h
Simple merge

diff --cc src/rgw/rgw_sync.cc
Simple merge

diff --cc src/rgw/rgw_sync.h
Simple merge