vim-patch:8.1.0404: accessing invalid memory with long argument name

Problem:    Accessing invalid memory with long argument name.
Solution:   Use item_count instead of checking for a terminating NULL.
            (Dominique Pelle, closes vim/vim#3444)
e961cba3cb

src/nvim/version.c

@@ -2063,7 +2063,7 @@ void list_in_columns(char_u **items, int size, int current)
 
   if (Columns < width) {
     // Not enough screen columns - show one per line
-    for (i = 0; items[i] != NULL; i++) {
+    for (i = 0; i < item_count; i++) {
       version_msg_wrap(items[i], i == current);
       if (msg_col > 0) {
         msg_putchar('\n');