[minor] set response in app.py

frappe/app.py

@@ -122,6 +122,7 @@ def make_form_dict(request):
 		frappe.local.form_dict.pop("_")
 
 def handle_exception(e):
+	response = None
 	http_status_code = getattr(e, "http_status_code", 500)
 	return_as_message = False
 

frappe/frappeclient.py

@@ -5,9 +5,6 @@ import frappe
 
 '''
 FrappeClient is a library that helps you connect with other frappe systems
-
-
-
 '''
 
 class AuthError(Exception):