for reference, here's the complete /etc/profile.d/locale.sh from arch linux

locale.sh (text/plain), 1.11 KB, created by redneb on 2013-07-26 00:57:29 UTC

#!/bin/sh

unset LANG LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY LC_MESSAGES \
      LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT LC_IDENTIFICATION

if [ -n "$XDG_CONFIG_HOME" ] && [ -r "$XDG_CONFIG_HOME/locale.conf" ]; then
  . "$XDG_CONFIG_HOME/locale.conf"
elif [ -n $HOME ] && [ -r $HOME/.config/locale.conf ]; then
  . "$HOME/.config/locale.conf"
elif [ -r /etc/locale.conf ]; then
  . /etc/locale.conf
elif [ -r /etc/rc.conf ]; then
  LANG=$(. /etc/rc.conf 2>/dev/null; echo "$LOCALE")
fi

export LANG="${LANG:-C}"
[ -n "$LC_CTYPE" ]          && export LC_CTYPE
[ -n "$LC_NUMERIC" ]        && export LC_NUMERIC
[ -n "$LC_TIME" ]           && export LC_TIME
[ -n "$LC_COLLATE" ]        && export LC_COLLATE
[ -n "$LC_MONETARY" ]       && export LC_MONETARY
[ -n "$LC_MESSAGES" ]       && export LC_MESSAGES
[ -n "$LC_PAPER" ]          && export LC_PAPER
[ -n "$LC_NAME" ]           && export LC_NAME
[ -n "$LC_ADDRESS" ]        && export LC_ADDRESS
[ -n "$LC_TELEPHONE" ]      && export LC_TELEPHONE
[ -n "$LC_MEASUREMENT" ]    && export LC_MEASUREMENT
[ -n "$LC_IDENTIFICATION" ] && export LC_IDENTIFICATION