Upgrading to testing version sys-apps/net-tools-1.60_p20161110235919. It's been stuck in unstable/testing for 6 months with no bugs open against the package that explain why it's stuck at there.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/overlays/portage-stable/+/a7df8bba259e918940cb11e1aa1fadcec32a3181

commit a7df8bba259e918940cb11e1aa1fadcec32a3181
Author: Jason D. Clinton <jclinton@chromium.org>
Date: Fri May 26 00:16:00 2017

net-tools: upgraded package to upstream

Upgraded sys-apps/net-tools to version 1.60_p20161110235919 on amd64, arm

BUG= chromium:710085 
TEST=build and deploy image to pyro; ran various networking scenarios.
built dasy and amd64-generic

Change-Id: I3f331dcf5e7eebeb746ef9ac6fc6b097399563bd
Reviewed-on: https://chromium-review.googlesource.com/516282
Commit-Ready: Jason Clinton <jclinton@chromium.org>
Tested-by: Jason Clinton <jclinton@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>

[modify] https://crrev.com/a7df8bba259e918940cb11e1aa1fadcec32a3181/sys-apps/net-tools/metadata.xml
[add] https://crrev.com/a7df8bba259e918940cb11e1aa1fadcec32a3181/sys-apps/net-tools/files/net-tools-1.60_p20161110235919-fix-building-w-older-linux-headers.patch
[delete] https://crrev.com/bd16cba511f10d99cc1b3149ea1f7349fed2372b/sys-apps/net-tools/net-tools-1.60_p20130513023548-r1.ebuild
[modify] https://crrev.com/a7df8bba259e918940cb11e1aa1fadcec32a3181/sys-apps/net-tools/Manifest
[delete] https://crrev.com/bd16cba511f10d99cc1b3149ea1f7349fed2372b/metadata/md5-cache/sys-apps/net-tools-1.60_p20130513023548-r1
[add] https://crrev.com/a7df8bba259e918940cb11e1aa1fadcec32a3181/sys-apps/net-tools/net-tools-1.60_p20161110235919.ebuild
[add] https://crrev.com/a7df8bba259e918940cb11e1aa1fadcec32a3181/metadata/md5-cache/sys-apps/net-tools-1.60_p20161110235919