libnih: upgraded package to upstream

This pulls in a signal race fix.

BUG=chrome-os-partner:37329
TEST=precq passes

Conflicts:
	sys-libs/libnih/Manifest
	sys-libs/libnih/libnih-1.0.3-r2.ebuild
	sys-libs/libnih/libnih-1.0.3-r3.ebuild
	sys-libs/libnih/libnih-1.0.3.ebuild
...conflicts due to http://crosreview.com/258540.  Did a simple
backport.

Change-Id: If40b2a2bd59f0f6bdc768f7be83f5daaa6030dec
Reviewed-on: https://chromium-review.googlesource.com/272732
Trybot-Ready: Mike Frysinger <vapier@chromium.org>
Tested-by: Caesar Wang <wxt@rock-chips.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Commit-Queue: Douglas Anderson <dianders@chromium.org>
(cherry picked from commit 34bc3e15a809076d7019f1510e0a94bb2889b686)
Reviewed-on: https://chromium-review.googlesource.com/273528
Trybot-Ready: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Caesar Wang <wxt@rock-chips.com>
2 files changed