}
	return "", nil
}

// exclusiveWrite attempts to create filename exclusively, and if successful,
// writes content to the resulting file handle.
//
// It returns a boolean indicating whether the exclusive handle was acquired,
// and an error indicating whether the operation succeeded.
// If the file already exists, exclusiveWrite returns (false, nil).
func exclusiveWrite(filename string, content []byte) (_ bool, rerr error) {