pigz: update to latest upstream version

The new version supports USE=static which we want for use outside of the
chroot.

BUG=chromium-os:32519
TEST=`cbuildbot chromiumos-sdk {amd64,arm,x86}-generic-full` worked
TEST=`emerge pigz` produced a static binary
TEST=`emerge-amd64-generic -pv pigz` showed USE=-static

Change-Id: Ic440f498506887331422314d87bb6a0db6c57c20
Reviewed-on: https://gerrit.chromium.org/gerrit/29355
Reviewed-by: David James <davidjames@chromium.org>
Commit-Ready: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
3 files changed