vim-patch:7.4.574 #2539

Problem:    No error for eval('$').
Solution:   Check for empty name. (Yasuhiro Matsumoto)

https://github.com/vim/vim/commit/v7-4-574

src/nvim/version.c

@@ -209,7 +209,7 @@ static int included_patches[] = {
   //577,
   //576,
   //575,
-  //574,
+  574,
   //573,
   572,
   //571 NA