patch 8.0.0046

Problem:    Using NUL instead of NULL.
Solution:   Change to NULL. (Dominique Pelle)

src/version.c

@@ -764,6 +764,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    46,
 /**/
     45,
 /**/