[Default Configuration Part 6]: apply default s3 us-east-1 regional setting#2825

zoewangg merged 2 commits intofeature/master/defaults-modeaws/aws-sdk-java-v2:feature/master/defaults-modefrom

zoewang/defaultsmode-supportS3RegionalSettingaws/aws-sdk-java-v2:zoewang/defaultsmode-supportS3RegionalSettingCopy head branch name to clipboard