anchor.diff:  %% @doc Specifies how many requests to S3 / Bookshelf are in-flight at a given time.
   -spec fanout() -> Size :: pos_integer().
   fanout() ->
  -    fetch_and_validate_config_option(chef_objects, s3_parallel_ops_fanout).
  +    fetch_and_validate_config_option(s3_parallel_ops_fanout).
   
   %% @doc Specifies the maximum amount of time (in milliseconds) to wait for a SINGLE request
   %% to S3 / Bookshelf to complete.
   -spec timeout() -> MS :: pos_integer().
   timeout() ->
  -    fetch_and_validate_config_option(chef_objects, s3_parallel_ops_timeout).
  +    fetch_and_validate_config_option(s3_parallel_ops_timeout).
   
   %% @doc Fetch a configuration value via `application:get_env/2` and verify it is a
   %% non-negative integer.  Valid values are returned; invalid values trigger an error
  
positive.code:     catch
          error:{aws_error, {http_error,404,_}} ->
              %% We got a 404.  No biggie; mark it as 'missing' and move on
              {missing, Checksum};
          ExceptionClass:Reason->
              %% Something unanticipated happened.  We should log the specific reason for
  
negative.code:     %% Also, paranoia.
      Token = erlang:make_ref(),
  
      Worker = proc_lib:spawn_link(fun() ->
                                           Result = delete_file(OrgId, AwsConfig, Bucket, Checksum),
                                           Me ! {Token, Result, self()}
                                   end),
      receive
          {Token, Response, Worker} ->
              Response
  