patch 9.0.0008: cannot specify the variable name for "xxd -i"

Problem:    Cannot specify the variable name for "xxd -i".
Solution:   Add the "-name" argument. (David Gow, closes #10599)

src/version.c

@@ -735,6 +735,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    8,
 /**/
     7,
 /**/