Comment 3 for bug 510625

LANG= does not work for me, neither did LC_CTYPE= or setting these environment variables to C.

LC_MESSAGES=C does work.
Output of `locale` (after exporting LC_MESSAGES):
LANG=nl_NL.UTF-8
LANGUAGE=nl_NL
LC_CTYPE="nl_NL.UTF-8"
LC_NUMERIC="nl_NL.UTF-8"
LC_TIME="nl_NL.UTF-8"
LC_COLLATE="nl_NL.UTF-8"
LC_MONETARY="nl_NL.UTF-8"
LC_MESSAGES=C
LC_PAPER="nl_NL.UTF-8"
LC_NAME="nl_NL.UTF-8"
LC_ADDRESS="nl_NL.UTF-8"
LC_TELEPHONE="nl_NL.UTF-8"
LC_MEASUREMENT="nl_NL.UTF-8"
LC_IDENTIFICATION="nl_NL.UTF-8"
LC_ALL=

Setting LC_ALL=C works too, but changes other locale information too (unknown effects)