vim-patch:7.4.414

Problem:    Cannot define a command only when it's used.
Solution:   Add the CmdUndefined autocommand event. (partly by Yasuhiro
            Matsumoto)

https://code.google.com/p/vim/source/detail?r=v7-4-414

src/nvim/version.c

@@ -251,7 +251,7 @@ static int included_patches[] = {
   //417,
   //416,
   //415,
-  //414,
+  414,
   //413 NA
   //412 NA
   411,