[lint] Project code style calls for single quoted strings

Author: NikolasOliveira

webdiff/app.py

@@ -54,7 +54,7 @@ class Config:
 
 DIFF = None
 PORT = None
-HOSTNAME = "localhost"
+HOSTNAME = 'localhost'
 
 if app.config['TESTING'] or app.config['DEBUG']:
     handler = logging.StreamHandler()