Merge pull request #12090 from nschonni/patch-2

Quote Node 0.10 so correct version is printed

.travis.yml

 language: node_js
 node_js:
-  - 0.10
+  - "0.10"
 before_install:
   - time sudo pip install --use-mirrors -r test-infra/requirements.txt
   - rvm use 1.9.3 --fuzzy