Update travis.yml to match

Author: kattni

.travis.yml

@@ -26,7 +26,7 @@ install:
 - pip install --force-reinstall pylint==1.9.2
 script:
 - pylint adafruit_featherwing/*.py
-- ([[ ! -d "examples" ]] || pylint --disable=missing-docstring,invalid-name examples/**/*.py)
+- ([[ ! -d "examples" ]] || pylint --disable=missing-docstring,invalid-name examples/*.py)
 - circuitpython-build-bundles --filename_prefix adafruit-circuitpython-featherwing
   --library_location .
 - cd docs && sphinx-build -E -W -b html . _build/html && cd ..