Update basic "load all modules" test to ask for help as the default behavior is now to return failure...

.travis.yml

@@ -8,6 +8,6 @@ install:
   - pip install -r requirements.txt
 script: 
   - export PYTHONPATH=$PATHONPATH:./src
-  - python -m azure.cli
+  - python -m azure.cli -h
   - pylint src/azure
   - python -m unittest discover -s src/azure/cli/tests --buffer