range-diff: allow to diff files regardless of submodule config

diff --git a/t/t0051-windows-named-pipe.sh b/t/t0051-windows-named-pipe.sh
index e3c36341a0ae032137254225988fb76ec9fdfbcf..10ac92d22507ed839552e5cbec1e5978a00ca51d 100755 (executable)
--- a/t/t0051-windows-named-pipe.sh
+++ b/t/t0051-windows-named-pipe.sh
@@ -4,7 +4,7 @@ test_description='Windows named pipes'
 
 . ./test-lib.sh
 
-test_expect_failure MINGW 'o_append write to named pipe' '
+test_expect_success MINGW 'o_append write to named pipe' '
        GIT_TRACE="$(pwd)/expect" git status >/dev/null 2>&1 &&
        { test-tool windows-named-pipe t0051 >actual 2>&1 & } &&
        pid=$! &&