func (t *Table) stringTableDash() string {
	if t.Markdown {
		return t.stringMarkdownDash()
	}
	return t.stringDash()
}
func (t *Table) stringTableDash() string {
	if t.Markdown {
		return t.stringMarkdownDash()
	}
	return t.stringDash()
}
// stringTableDash - output table dash. Markdown or not depending on settings.