patch 8.1.1465: allocating wrong amount of memory

Problem:    Allocating wrong amount of memory. (Yegappan Lakshmanan)
Solution:   Use sizeof() for right type of struct.
diff --git a/src/version.c b/src/version.c
index 57f6db3..6fcd057 100644
--- a/src/version.c
+++ b/src/version.c
@@ -768,6 +768,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1465,
+/**/
     1464,
 /**/
     1463,