python-gnupg: upgraded package to upstream

Upgraded dev-python/python-gnupg to version 0.3.7 on amd64

BUG=chrome-os-partner:44763
TEST=emerge python-gnupg && python -c "import gnupg"

Change-Id: I078c56cf130742bfdcfd537774133cba5bbabf4d
Reviewed-on: https://chromium-review.googlesource.com/296902
Commit-Ready: Mao Huang <littlecvr@chromium.org>
Tested-by: Mao Huang <littlecvr@chromium.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
6 files changed