moinakg/pcompress

Heap corruption when compression 10GB benchmark

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Reported here: http://encode.ru/threads/1639-pcompress-a-deduplication-compression-utility?p=36184&viewfull=1#post36184

This is caused by failure to adequately size the compression buffer in adaptive modes. So buffer overrun can happen when compressing with LZ4 resulting in heap corruption.