go-imap: K9-Mail Compatibility: list special-use type error

To get K-9 Mail working, I changed the follwing

 s := make([]string, len(fields))
 for i, v := range fields {
    s[i] = fmt.Sprint(v)
  }
 
   if mailbox, err := imap.ParseString(s[0]); err != nil {
...

to line: https://github.com/emersion/go-imap/blob/master/commands/list.go#L41

Please excuse my go. I’ve only been writing it for one day.

references: https://stackoverflow.com/questions/44027826/convert-interface-to-string-in-golang