curl: upgraded package to upstream

Upgraded net-misc/curl to version 7.42.1 for all

BUG=chromium:481875
TEST=`cbuildbot amd64-generic-full` passes
TEST=precq passes

Change-Id: Ie6a88849e24b0d182a7c9d21168e4514deeaecf4
Reviewed-on: https://chromium-review.googlesource.com/268832
Trybot-Ready: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Nam Nguyen <namnguyen@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Paul Stewart <pstew@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
2 files changed