code: func (s *Site) getLanguageTargetPathLang(alwaysInSubDir bool) string {
  	if s.h.IsMultihost() {
  		return s.Language().Lang
  	}
  
  	return s.getLanguagePermalinkLang(alwaysInSubDir)
  }
docs: // get any lanaguagecode to prefix the target file path with.