patch 8.0.0470: not enough testing for help commands

Problem:    Not enough testing for help commands.
Solution:   Add a few more help tests. (Dominique Pelle, closes #1565)
diff --git a/src/version.c b/src/version.c
index bc85006..a132167 100644
--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    470,
+/**/
     469,
 /**/
     468,