Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.Approved by: re (implicit)Sponsored by: The FreeBSD Foundation
MFC r237410: zlib 1.2.7.
Copy head to stable/9 as part of 9.0-RELEASE release cycle.Approved by: re (implicit)
Add huff __FBSDID()s puff to whew! libz
Add zopen(), a stdio wrapper for gzipped data streams.Obtained from: NetBSD