Changelog for s6-dns.

In 2.2.0.1
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 - Optimization release for skalibs-2.6.0.0.


In 2.2.0.0
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 - Added this NEWS file. :)
 - Major types overhaul to make them more POSIXly correct:
compatibility with skalibs-2.5.0.0.
 - Fixed a long-standing bug that sometimes prevented DNS reply headers
from being correctly decoded on big-endian machines.