t5100: Avoid filename "nul"

diff --git a/t/t3404-rebase-interactive.sh b/t/t3404-rebase-interactive.sh
index 9cf873f7ebfa8f8a4fd215cbbb468f955d6a47e3..b9e3dbd242cc92710d1c689ca5412619e46ee63f 100755 (executable)
--- a/t/t3404-rebase-interactive.sh
+++ b/t/t3404-rebase-interactive.sh
@@ -91,9 +91,8 @@ for line in $FAKE_LINES; do
 done
 EOF
 
+test_set_editor "$(pwd)/fake-editor.sh"
 chmod a+x fake-editor.sh
-VISUAL="$(pwd)/fake-editor.sh"
-export VISUAL
 
 test_expect_success 'no changes are a nop' '
        git rebase -i F &&