vim-patch:7.4.2225

Problem:    Crash when placing a sign in a deleted buffer.
Solution:   Check for missing buffer name. (Dominique Pelle). Add a test.

bfd096d020

src/nvim/version.c

@@ -215,7 +215,7 @@ static int included_patches[] = {
   // 2228,
   2227,
   // 2226,
-  // 2225,
+  2225,
   // 2224,
   // 2223,
   // 2222,