parseGitZOutput = (input) =>
  input
    ? input
        .replace(/\u0000$/, '') // eslint-disable-line no-control-regex
        .split('\u0000')
    : []
Return array of strings split from the output of `git <something> -z`.
With `-z`, git prints `fileA\u0000fileB\u0000fileC\u0000` so we need to
remove the last occurrence of `\u0000` before splitting