Keep the parallel execution pipes full as much as possible.

Rearrange some of the pipe redirections to avoid crashing on Windows.

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Review URL: https://codereview.chromium.org/11260036

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@164140 0039d316-1c4b-4281-b951-d872f2087c98
2 files changed