In the tests, p4d is started without using "internationalized
mode". Make sure this environment variable is unset, otherwise
a mis-matched user setting would break the tests. The error
message would be "Unicode clients require a unicode enabled server."
[pw: use unset, add commit text]
Signed-off-by: Kazuki Saitoh <ksaitoh560@gmail.com> Signed-off-by: Pete Wyckoff <pw@padd.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>