fix: implement setting.get method used within pdbqual tool

aria/conbox/settings.py

@@ -34,8 +34,8 @@ class Setting(object):
             raise KeyError(item)
 
     def get(self, key, default=None):
-        return self.config[key] if key in self.config else self.args[
-            key] if key in self.args else default
+        return self.config[key] if key in self.config else self.args[key] \
+            if key in self.args else default
 
     def __repr__(self):
         return "Setting object\n    config: %s\n    args  : %s" % (self.config,