code: function onDelete( error ) {
  			if ( error ) {
  				debug( 'Error encountered while attempting to delete a temporary output file %s: %s', outFile, error.message );
  				return done( error );
  			}
  			debug( 'Successfully deleted temporary output file: %s', outFile );
  			done( null, file );
  		}
docs: FUNCTION: onDelete( [error] )
  Callback invoked upon deleting a file.
  
  @private
  @param {Error} [error] - error object
  @returns {Void}