patch 8.0.0489: clipboard and "* register is not tested

Problem:    Clipboard and "* register is not tested.
Solution:   Add a test for Mac and X11. (Kazunobu Kuriyama)
diff --git a/src/version.c b/src/version.c
index c620780..dd6e366 100644
--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    489,
+/**/
     488,
 /**/
     487,