Make toolchain2013.py work properly if there's a space in the temp path.
Make toolchain2013.py work properly if there's a space in the temp path.

TBR=maruel@chromium.org
R=scottmg@chromium.org

Review URL: https://codereview.chromium.org/184103027

git-svn-id: bd64dd6fa6f3f0ed0c0666d1018379882b742947@254932 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

svn2github/chromium-depot-tools,svn2github/chromium-depot-tools,svn2github/chromium-depot-tools