deprecated: now a built-in AWS feature
Cleanup stale multipart uploads from an S3 bucket.
$ npm install -g s3mpu-cleanup
$ s3mpu-cleanup s3://my-bucket
aborted s3://my-bucket/thumbnails/preview.jpg@16FTtpvs.gJx...
aborted s3://my-bucket/thumbnails/catgif.jpg@OerXqge5ncLs...
aborted s3://my-bucket/thumbnails/logo.jpg@BRXewFOgz2Ah...