Redirect stderr to stdout to avoid stdout/stderr races
Redirect stderr to stdout to avoid stdout/stderr races

R=17d38a2d68c6a07a3ab0ce4a2873c5acefbd3dbb@chromium.org

Bug: chromium:916164
Change-Id: I3b21a72e98f763913e6d4e6c4c45ebfdf8581f61
Reviewed-on: https://chromium-review.googlesource.com/c/1382991
Reviewed-by: Juan Antonio Navarro Pérez <1649bb5e6b9eafe026580e338065dc64ba6b80b2@chromium.org>
Reviewed-by: John Budorick <17d38a2d68c6a07a3ab0ce4a2873c5acefbd3dbb@chromium.org>
Commit-Queue: Sergiy Belozorov <aadb4a11584aa9878242ea5d9e4b7e3429654579@chromium.org>

catapult-project/catapult,catapult-project/catapult,catapult-project/catapult,catapult-project/catapult,catapult-project/catapult,catapult-project/catapult,catapult-project/catapult