fixed exit confirmation glitch

IPython/core/interactiveshell.py

@@ -3252,10 +3252,10 b' class InteractiveShell(SingletonConfigurable):'
         """Write a string to the default error output"""
         io.stderr.write(data)
 
-    def ask_yes_no(self, prompt, default=None):
+    def ask_yes_no(self, prompt, default=None, interrupt=None):
         if self.quiet:
             return True
-        return ask_yes_no(prompt,default)
+        return ask_yes_no(prompt,default,interrupt)
 
     def show_usage(self):
         """Show a usage message"""

IPython/terminal/interactiveshell.py

@@ -617,7 +617,7 b' class TerminalInteractiveShell(InteractiveShell):'
 
         This method calls the ask_exit callback."""
         if self.confirm_exit:
-            if self.ask_yes_no('Do you really want to exit ([y]/n)?','y'):
+            if self.ask_yes_no('Do you really want to exit ([y]/n)?','y','n'):
                 self.ask_exit()
         else:
             self.ask_exit()