code: func (h *Hosts) Load() error {
  	var lines []HostsLine
  
  	file, err := os.Open(h.Path)
  	if err != nil {
  		return err
  	}
  	defer file.Close()
  
  	scanner := bufio.NewScanner(file)
  	for scanner.Scan() {
  		line := NewHostsLine(scanner.Text())
  		if err != nil {
  			return err
  		}
  
  		lines = append(lines, line)
  	}
  
  	if err := scanner.Err(); err != nil {
  		return err
  	}
  
  	h.Lines = lines
  
  	return nil
  }
docs: // Load the hosts file into ```l.Lines```.
  // ```Load()``` is called by ```NewHosts()``` and ```Hosts.Flush()``` so you
  // generally you won't need to call this yourself.