Clarify zstd specification for Huffman blocks #3514
Merged
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This is an update to the Zstandard Specification document,
which clarifies a few details and corner cases of the Huffman blocks and Huffman Tree descriptions,
that could be incorrectly interpreted,
following valid and detailed comments from @dweiller in #3508.
This might also be ground for a clarification erratum to the RFC8878.