patch 9.0.0829: wrong counts in macro comment

Problem:    Wrong counts in macro comment.
Solution:   Update the value counts. (closes #11480)
diff --git a/src/vim.h b/src/vim.h
index 5d8c738..3ef6469 100644
--- a/src/vim.h
+++ b/src/vim.h
@@ -1963,8 +1963,8 @@
 #define MOUSE_COLOFF 10000
 
 /*
- * jump_to_mouse() returns one of first four these values, possibly with
- * some of the other three added.
+ * jump_to_mouse() returns one of first five these values, possibly with
+ * some of the other four added.
  */
 #define IN_UNKNOWN		0
 #define IN_BUFFER		1