vim-patch:7.4.518

Problem:    Using status line height in width computations.
Solution:   Use one instead. (Hirohito Higashi)

https://code.google.com/p/vim/source/detail?r=v7-4-518

src/nvim/version.c

@@ -220,7 +220,7 @@ static int included_patches[] = {
   //521,
   520,
   //519,
-  //518,
+  518,
   //517,
   516,
   //515,

src/nvim/window.c

@@ -638,7 +638,7 @@ int win_split_ins(int size, int flags, win_T *new_wp, int dir)
         if (frp->fr_win != oldwin && frp->fr_win != NULL
             && (frp->fr_win->w_width > new_size
                 || frp->fr_win->w_width > oldwin->w_width
-                - new_size - STATUS_HEIGHT)) {
+                                          - new_size - 1)) {
           do_equal = TRUE;
           break;
         }