Description of problem: As per Uday's email, S3 request payer API: 1314582 (https://bugzilla.redhat.com/show_bug.cgi?id=1314582) was released with 2.1 but the docs do not contain any reference and also mentions that this feature is unsupported: https://access.redhat.com/documentation/en/red-hat-ceph-storage/2/paged/object-gateway-guide-for-red-hat-enterprise-linux/chapter-6-object-gateway-s3-api
Looks good to me.