Fix simplejson import for Mac OSX 10.5 users
Fix simplejson import for Mac OSX 10.5 users

BUG=none
TEST=Poor mac users should be able to use git-cl back again.

git-svn-id: bd64dd6fa6f3f0ed0c0666d1018379882b742947@79932 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

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