Merge pull request #8186 from rzarzynski/wip-rgw-bulkdel-cosm

rgw: optimize BulkDelete authorization and response printing
Reviewed-by: Orit Wasserman <owasserm@redhat.com>

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

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

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