version.c: Mark 7.4.935 NA

Problem:    test_utf8 fails on MS-Windows when executed with gvim.
Solution:   Use the insert flag on feedkeys() to put the string before the
            ":" that was already read when checking for available chars.

6040256d8b

---

feedkeys() is not used by legacy test utf8.

src/nvim/version.c

@@ -353,7 +353,7 @@ static int included_patches[] = {
   // 938 NA
   // 937,
   // 936,
-  // 935,
+  // 935 NA
   // 934 NA
   933,
   932,