Warnings around region

[asehra]

When syncing buckets on s3 and specifying url as https://s3.amazonaws.com, lots of warning messages are printed:

S3 client configured for "eu-west-1" but the bucket "source-bucket" is in "eu-west-1"; Please configure the proper region to avoid multiple unnecessary redirects and signing attempts
S3 client configured for "eu-west-1" but the bucket "destination" is in "eu-west-1"; Please configure the proper region to avoid multiple unnecessary redirects and signing attempts