util-linux: upgraded package to upstream

Upgraded sys-apps/util-linux to version 2.27.1 on amd64

Used "--unstable-ok"

BUG=chromium:583671
TEST=Built packages for swanky
CQ-DEPEND=CL:325741, CL:333903

Change-Id: I9781f65e5c07207c88d46cd91d6f01c65dd0d427
Reviewed-on: https://chromium-review.googlesource.com/325680
Commit-Ready: Sabin Floares <sabin.floares@intel.com>
Tested-by: Sabin Floares <sabin.floares@intel.com>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
7 files changed