Setting locale in Sabayon 13.11

To set the system default locale to en_AU.UTF-8 in Sabayon 13.11:

sudo nano /etc/locale.gen
  en_AU.UTF-8 UTF-8
  en_AU ISO-8859-1

sudo nano /etc/locale.conf
  LANG=en_AU.UTF-8

sudo env-update   (applies the changes to /etc/profile.env)
source /etc/profile (makes the change effective in the current shell - restart if not effective)