just output an empty string if no separators
just output an empty string if no separators


Former-commit-id: 006291d5cd740ffc78636edffb5fef69c9acbf9a [formerly d254f154b0c44798b4e69b91a3da3e15502ea9fe]
Former-commit-id: 1280115af3ab7b030c79367b0d8692200a9694c1
romancow/Sugar,andrewplummer/Sugar,andrewplummer/Sugar,romancow/Sugar