Update app.py, test_app.py files

app.py

@@ -18,7 +18,7 @@ app = Flask('hello-gitlab')
 
 @app.route('/wp/python-app')
 def hello():
-  return "Python on K8s!\n"
+  return "Python2.7 on K8s!\n"
 
 if __name__ == '__main__':
   app.run(host = '0.0.0.0', port = 8080)

test_app.py

@@ -18,7 +18,7 @@ from app import hello
 class TestHelloApp(unittest.TestCase):
 
   def test_hello(self):
-    self.assertEqual(hello(), "Python on K8s!\n")
+    self.assertEqual(hello(), "Python2.7 on K8s!\n")
 
 if __name__ == '__main__':
   unittest.main()