vim-patch:7.4.565

Problem:    Ranges for arguments, buffers, tabs, etc. are not checked to
            be valid but limited to the maximum.  This can cause the
wrong
            thing to happen.
Solution:   Give an error for an invalid value. (Marcin Szamotulski)
            Use windows range for ":wincmd".

https://code.google.com/p/vim/source/detail?r=v7-4-565

src/nvim/ex_cmds.lua

@@ -2992,7 +2992,7 @@ return {
   {
     command='wincmd',
     flags=bit.bor(NEEDARG, WORD1, RANGE, NOTADR),
-    addr_type=ADDR_LINES,
+    addr_type=ADDR_WINDOWS,
     func='ex_wincmd',
   },
   {