vim-patch:8.0.0069

Problem:    Compiler warning for self-comparison.
Solution:   Define ONE_WINDOW and add vim/vim#ifdef.

a1f4cb93ba

src/nvim/version.c

@@ -660,7 +660,7 @@ static const int included_patches[] = {
   // 72 NA
   // 71 NA
   // 70 NA
-  // 69,
+  69,
   68,
   // 67 NA
   66,