patch 7.4.1223

Problem:    Crash when setting v:errors to a number.
Solution:   Free the typval without assuming its type. (Yasuhiro Matsumoto)

src/version.c

@@ -742,6 +742,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1223,
 /**/
     1222,
 /**/