confirm.patch

diff --git a/lib/plugins/defaults/confirm.rb b/lib/plugins/defaults/confirm.rb
index 37939b2..29e6da9 100644
--- a/lib/plugins/defaults/confirm.rb
+++ b/lib/plugins/defaults/confirm.rb
@@ -1,14 +1,15 @@
 # -*- coding: utf-8 -*-
 config.set_default(:confirm, true)
 
-def confirm(message)
-  if config.confirm && !Termtter::Client.confirm(message)
+def confirm(message, default = true)
+  if config.confirm && !Termtter::Client.confirm(message, default)
     raise Termtter::CommandCanceled
   end
 end
 
 Termtter::RubytterProxy.register_hook(:confirm_update, :point => :pre_update) do |*args|
-  confirm("update #{args.first}")
+  default = /\A\d{10,}\s/ === args.first
+  confirm("update #{args.first}", !default)
   args
 end