Merge pull request #10021 from rzarzynski/wip-rgw-swift-auth-errors

rgw: handle Swift auth errors in a way compatible with new Tempests.
Reviewed-by: Orit Wasserman <owasserm@redhat.com>

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

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

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

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

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