fix: applied fernando's if simplification fix

IPython/frontend/html/notebook/notebookapp.py

@@ -263,9 +263,7 b' class IPythonNotebookApp(BaseIPythonApplication):'
 
     def start(self):
         ip = self.ip if self.ip else '[all ip addresses on your system]'
-        proto = 'http'
-        if self.certfile:
-            proto = 'https'
+        proto = 'https' if self.certfile else 'http'
         self.log.info("The IPython Notebook is running at: %s://%s:%i" % (proto,
                                                                           ip,
                                                                           self.port))