we seem to have lost zstandard tests

[edwardhartnett]

I know that at one time there was a zstandard test.

But now it is not present. Not sure where it went. But obviously we want to test zstandard.

[DennisHeimbigner]

Odd. By any chance can you remember a release that had it? Or remember its name? If so, we can probably find and restore it.

[WardF]

I'll take a look now that I've got the zip issue fixed.