t/test-lib: introduce OID_REGEX

diff --git a/t/t5526-fetch-submodules.sh b/t/t5526-fetch-submodules.sh
index 74486c73b0bcc20ee69e49d5c1cc072994e4d7b0..9cc4b569c0566da2f5c2778f404e67e20b29ed06 100755 (executable)
--- a/t/t5526-fetch-submodules.sh
+++ b/t/t5526-fetch-submodules.sh
@@ -85,7 +85,7 @@ test_expect_success "fetch --recurse-submodules -j2 has the same output behaviou
        add_upstream_commit &&
        (
                cd downstream &&
-               GIT_TRACE=$(pwd)/../trace.out git fetch --recurse-submodules -j2 2>../actual.err
+               GIT_TRACE="$TRASH_DIRECTORY/trace.out" git fetch --recurse-submodules -j2 2>../actual.err
        ) &&
        test_must_be_empty actual.out &&
        test_i18ncmp expect.err actual.err &&