message: Revised S3 helloworld doc comments to reflect reality
diff: @@ -33,11 +33,11 @@ struct Opt {
  verbose: bool,
  }
  -/// Gets the contents of an object in a bucket.
  +/// Lists your buckets and uploads a file to a bucket.
  /// # Arguments
  ///
  -/// * `-b BUCKET` - The bucket.
  -/// * `-k KEY` - The key.
  +/// * `-b BUCKET` - The bucket to which the file is uploaded.
  +/// * `-k KEY` - The name of the file to upload to the bucket.
  /// * `[-d DEFAULT-REGION]` - The region in which the client is created.
  /// If not supplied, uses the value of the **AWS_DEFAULT_REGION** environment variable.
  /// If the environment variable is not set, defaults to **us-west-2**.
  