public static String format(String format, Object... args) {
	return String.format(Locale.US, format, args);
    }
Returns a string which is never larger than the given number of code points.
If the string is longer than the given length it will be truncated.
If length is 4 or less the string will be truncated to length.
If length is longer than 4, it will be truncated at length-4 with " ..." added at the end.
vespajlib/src/main/java/com/yahoo/text/Text.java