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
Previous-Reviewed-on: https://chromium-review.googlesource.com/268832
(cherry picked from commit 101404b04aee9e82c35a2334717b2341782b4fd5)
Reviewed-on: https://chromium-review.googlesource.com/269650
Reviewed-by: Jorge Lucangeli Obes <jorgelo@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
2 files changed