perl-5.12.2 t/op/mkdir fails (in LANG=ja)

gistfile1.txt

t/op/magic.....................................................ok
t/op/method....................................................ok
t/op/mkdir.....................................................# Failed at op/mkdir.t line 20
#      got 'ファイルが存在します。'
# expected /(?i-xsm:cannot move|exist|denied|unknown)/
# Failed at op/mkdir.t line 24
#      got 'ファイルもディレクトリもありません。'
# expected /(?i-xsm:cannot find|such|exist|not found|not a directory|unknown)/
FAILED at test 3
t/op/my........................................................ok
t/op/my_stash..................................................ok
t/op/mydef.....................................................ok