UNIX Text files are defined to have a trailing whiteline

.travis.yml

@@ -5,6 +5,7 @@ python:
 # command to install dependencies
 install: "pip install pytest pytest-black pytest-cov pylint-isort pytest-mypy pytest-pylint pytest-flake8 coveralls"
 # command to run tests
-script: pytest --black --isort --pylint --pylint-jobs=4 --mypy --flake8 --cov=pyrad3 
+script: pytest --black --isort --pylint --pylint-jobs=4 --mypy --flake8 --cov=pyrad3
 after_success:
   - coveralls
+