http://www.nongnu.org/lzip/xz_inadequate.html is an interesting read why
xz is an unsafe data format for long-time archival (bit-flips are
particularly disastrous to recover from), and argues that lzip may be a
better compression format.  Meanwhile, the recently-released open-source
Zstd compression seems like it can outperform several other compression
formats; http://facebook.github.io/zstd/.  Should we be revisiting
coreutils' xz-only distribution policy?

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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