14:25 naddy 

Update to 1.22 which adds --xz/-J support for xz compression.
However, xz itself does not have a stable release yet, so don't force
a runtime dependency.

17:41 naddy 

* Update to 1.21.  Notable changes:
  - Some new flags, e.g. -J for lzma compression and --lzop.
  - transformation scope flags
  Testsuite fixes from upstream CVS.

* Drop workarounds for no longer supported FreeBSD releases.