private static void appendColumnValue(
        StringBuilder rowBuilder,
        String value,
        int length
    ) {
        int padLength = length - value.length();
        rowBuilder.append(value);
        for (int i = 0; i < padLength; i++)
            rowBuilder.append(' ');
    }
print out the metrics in alphabetical order
@param metrics   the metrics to be printed out
tools/src/main/java/org/apache/kafka/tools/ToolsUtils.java