is preserve_attrs_list configurable?

[joeaguy]

I see preserve_attrs_list in s3cmd/S3/Config.py but reading the code (I don't know Python very well) it doesn't seem like it is possible to override this via configuration settings, not does it appear in when I run s3cmd --configure.

I would like to modify this to remove any user or group settings from the sync, but keep the time and m5, as there are account differences on the sending and receiving systems, and attempting to preserve uids, gids, etc, makes things harder for my use case, which is sensitive to the modified time.