Code review comment for lp:~mwhudson/livecd-rootfs/default-LANG-C.UTF-8

+1.

Testing the cpc bits should be a matter of ensuring that a cloud image boots by default with no noise about locale-gen in the cloud-init logs and still ends up with /etc/default/locale set to C.UTF-8 after boot; and also to test in at least one cloud with cloud data overrides to set the locale to something else. (And anyway, if either of these tests fails, it needs fixing in cloud-init at that point.)