fix code style

Typograph.py

@@ -62,4 +62,5 @@ class TypographSelectionCommand(sublime_plugin.TextCommand):
             if key in DEFAULT_SETTINGS:
                 local_settings[key] = project_settings[key]
             else:
-                print('{}: invalid key "{}" in project settings'.format(PLUGIN_NAME, key))
+                msg = '{}: invalid key "{}" in project settings'
+                print(msg.format(PLUGIN_NAME, key))

lib/mdash.py

@@ -15,7 +15,7 @@ class TypographError(RuntimeError):
 
 class Typograph(object):
 
-    def __init__(self, rules = None):
+    def __init__(self, rules=None):
         self.rules = self.__prepare_rules(rules)
 
     def process(self, text):