tree 309aa69f187a9a683f403f74e185a3ff40ea69cd
parent dda01f1a7731dda72cc92c7c0abe07a0fbc88e8e
author Nigel Tao <nigeltao@golang.org> 1641609987 +1100
committer Nigel Tao <nigeltao@golang.org> 1641610654 +1100

Fix std/deflate degenerate H-D Huffman table

RFC 1951 section 3.2.7. "Compression with dynamic Huffman codes
(BTYPE=10)" says, "If only one distance code is used, it is encoded
using one bit, not zero bits; in this case there is a single code length
of one, with one unused code."

I had previously mis-read that excerpt to also require that the sole
distance code was the shortest distance (code 0, a distance of 1).

Fixes #66