.travis.yml in rspec-system-0.3.2 vs .travis.yml in rspec-system-0.3.3

@@ -1,7 +1,7 @@
 language: ruby
 bundler_args: --without development
-script: "rspec"
+script: "SPEC_OPTS='--format=d' rake spec"
 rvm:
   - 1.8.7
   - 1.9.3
   - 2.0.0
   - ruby-head