Cloudlog/system/language/french/number_lang.php

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

$lang['terabyte_abbr'] = 'To';
$lang['gigabyte_abbr'] = 'Go';
$lang['megabyte_abbr'] = 'Mo';
$lang['kilobyte_abbr'] = 'Ko';
$lang['bytes']         = 'Octets';