Peter Dillinger 7818d19169 Fix^2 prefix extractor testing in crash test (#9463)
Summary:
Even after https://github.com/facebook/rocksdb/issues/9461 could see
```
Error: please specify prefix_size for test_batches_snapshots test!
```

Pull Request resolved: https://github.com/facebook/rocksdb/pull/9463

Test Plan:
run `make blackbox_crashtest` for a long time. (Unfortunately,
it's taking a long time to reproduce these failures)

Reviewed By: akankshamahajan15

Differential Revision: D33838152

Pulled By: pdillinger

fbshipit-source-id: b9a73c5bbb68df53f14c22b9b52f61d1f7ef38af
2022-01-31 11:32:04 -08:00
..
2022-01-12 09:31:12 -08:00
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