Ævar Arnfjörð Bjarmason [off-list ref] writes:

There are now three remaining files using the low-level API:

- Two cases in "builtin/submodule--helper.c", where it's used safely
  to see if any config exists.

  We could refactor these away from "multi" to some "does it exist?"
  function, as [4] did, but as that's orthogonal to the "string"
  safety we're introducing here let's leave them for now.

Maybe I'm mistaken, but weren't these removed in 3/9? I couldn't find
these calls any more.