reopen_tempfile(): truncate opened file

diff --git a/t/t1406-submodule-ref-store.sh b/t/t1406-submodule-ref-store.sh
index c32d4cc4652a4496ce8fa6aa1c10c797ae7d760a..e093782cc37c495a122eb8676797b1988b828c29 100755 (executable)
--- a/t/t1406-submodule-ref-store.sh
+++ b/t/t1406-submodule-ref-store.sh
@@ -4,7 +4,7 @@ test_description='test submodule ref store api'
 
 . ./test-lib.sh
 
-RUN="test-ref-store submodule:sub"
+RUN="test-tool ref-store submodule:sub"
 
 test_expect_success 'setup' '
        git init sub &&