distutils-r1.eclass: Upgrade to upstream

BUG=chromium:918017
TEST=tryjob

Change-Id: I435b01204c35d8984e9c0681a2a042de14f725f0
Reviewed-on: https://chromium-review.googlesource.com/1412036
Commit-Ready: Chris McDonald <cjmcdonald@chromium.org>
Tested-by: Chris McDonald <cjmcdonald@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
1 file changed