scripts: json_store: Don't try to create directories with empty names.
scripts: json_store: Don't try to create directories with empty names.

VBChunguk/thcrap,thpatch/thcrap,VBChunguk/thcrap,thpatch/thcrap,thpatch/thcrap,VBChunguk/thcrap,thpatch/thcrap,thpatch/thcrap