vim-patch:7.4.1664

Problem:    Crash in :cgetexpr.
Solution:   Check for NULL pointer. (Dominique) Add a test.

89c64d557d

src/nvim/version.c

@@ -780,7 +780,7 @@ static int included_patches[] = {
   // 1667 NA
   // 1666 NA
   // 1665 NA
-  // 1664,
+  1664,
   1663,
   // 1662 NA
   // 1661 NA