if someone with admin privs can review, merge & sync https://github.com/pantsbuild/binaries/pull/32 it’d be much appreciated

Merged but not `./sync-s3.sh`'d. It was unclear to me whether the built 4.9.0 binaries had the fix in https://github.com/pantsbuild/binaries/pull/32. I'll be working until ~4pm Pacific today so ping me with that and I'll sync or hopefully have IAM setup so that committers can all sync.