t0090: disable GIT_TEST_SPLIT_INDEX for the test checking split index

diff --git a/t/t0021-conversion.sh b/t/t0021-conversion.sh
index 6a213608cc10fc29691f8bf293b0a34ce1f93c5e..308cd28f3bd7304a63628e8a64014e8d20faa82f 100755 (executable)
--- a/t/t0021-conversion.sh
+++ b/t/t0021-conversion.sh
@@ -583,7 +583,7 @@ test_expect_success PERL 'process filter should restart after unexpected write f
                git checkout --quiet --no-progress . 2>git-stderr.log &&
 
                grep "smudge write error at" git-stderr.log &&
-               grep "error: external filter" git-stderr.log &&
+               test_i18ngrep "error: external filter" git-stderr.log &&
 
                cat >expected.log <<-EOF &&
                        START