func shouldCall(rel string, mode Mode, updateRels map[string]bool) bool {
	return mode != UpdateDirsMode || updateRels[rel]
}
func shouldCall(rel string, mode Mode, updateRels map[string]bool) bool {
	return mode != UpdateDirsMode || updateRels[rel]
}
func shouldCall ( rel string , mode Mode , updateRels map [ string ] bool ) bool { return mode != UpdateDirsMode || updateRels [ rel ] }
// shouldCall returns true if Walk should call the callback in the
// directory rel.
shouldCall returns true if Walk should call the callback in the directory rel .