code: func prepCorefileFormat(s string, indentation int) string {
  	var r []string
  	if s == "" {
  		return ""
  	}
  	for _, line := range strings.Split(s, "\n") {
  		indented := strings.Repeat(" ", indentation) + line
  		r = append(r, indented)
  	}
  	corefile := strings.Join(r, "\n")
  	return "\n" + strings.Replace(corefile, "\t", "   ", -1)
  }
docs: // prepCorefileFormat indents the output of the Corefile caddytext and replaces tabs with spaces
  // to neatly format the configmap, making it readable.