This is the XZ Embedded decompression library from
https://tukaani.org/xz/embedded.html.

Upstream code can be viewed at
  https://git.tukaani.org/xz-embedded.git

and cloned by
  git clone https://git.tukaani.org/xz-embedded.git

The in-tree copy is updated by running
  sh update.sh
from within the modules/xz-embedded directory.

Current version: [3f438e15109229bb14ab45f285f4bff5412a9542].
