Method FormatError

fmttests/format_error_test.go:546–552

(p errbase.Printer)

func (e *errFmt) Error() string                 { return e.msg }
func (e *errFmt) Format(s fmt.State, verb rune) { errbase.FormatError(e, s, verb) }
func (e *errFmt) FormatError(p errbase.Printer) error {
	p.Print(e.msg)
	if p.Detail() {
		p.Printf("-- this is %s's\nmulti-line leaf payload", e.msg)
	}
	return nil
}

// werrFmt is like errFmt but is a wrapper.
type werrFmt struct {