better formatting in travis.yml

[skip ci]

.travis.yml

@@ -1,7 +1,7 @@
 ---
 language: node_js
 node_js:
-- 0.1
+- "0.10"
 env:
   global:
   - "ARTIFACTS_S3_BUCKET=leaflet-cdn"
@@ -13,7 +13,14 @@ env:
       EQ4c2c8VklzFZRxKnizI0/VK0anHhlyc1Rv0vqkMj/YPKxmbWNfOlsOCN2gM
       p+q8QzCG1Np9D1Kq9K0miYqHgZxgu4D/4Mwy04bh1UfyoUcDfB1tJmEtsKY/
       8Bl46ZfhxbTG39b6Y315GuU+49QdFMEXhSqx/G7on1xC4aYLXLc=
-before_script:
-- "test ${TRAVIS_BRANCH} = master || test ${TRAVIS_BRANCH} = stable && test ${TRAVIS_PULL_REQUEST} = false && gem install travis-artifacts"
-after_success:
-- "test ${TRAVIS_BRANCH} = master || test ${TRAVIS_BRANCH} = stable && test ${TRAVIS_PULL_REQUEST} = false && cd dist && zip -x .DS_Store -r leaflet-${TRAVIS_BRANCH}.zip . && travis-artifacts upload --path leaflet-${TRAVIS_BRANCH}.zip --target-path build && echo uploaded"
+before_script: >
+  test ${TRAVIS_BRANCH} = master ||
+  test ${TRAVIS_BRANCH} = stable &&
+  test ${TRAVIS_PULL_REQUEST} = false &&
+  gem install travis-artifacts
+after_success: >
+  test ${TRAVIS_BRANCH} = master ||
+  test ${TRAVIS_BRANCH} = stable &&
+  test ${TRAVIS_PULL_REQUEST} = false &&
+  cd dist && zip -x .DS_Store -r leaflet-${TRAVIS_BRANCH}.zip . &&
+  travis-artifacts upload --path leaflet-${TRAVIS_BRANCH}.zip --target-path build