mod_storage_s3: Remove wrapper and original timestamp from payload (BC) Unpacking the wrapper was already removed in 66986f5271c3 so it was broken already. Just rely on the Last-Modified date instead, it's not going to be accurate if a different timestamp is passed, e.g. with migrations, but that will have to be a future problem. Perhaps the X-Amz-Meta-* can be used?

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summary: Log a message once per minute
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This module sends `-- MARK --` to the log once per minute. This may be
useful to give a sense of how busy the server is or see that logging and
timers are still working.