master 43201801: Fix last change for non-X platforms

[Po Lu]

branch: master
commit 4320180111422ad803f26a30e616f1f18efedb65
Author: Po Lu <luangruo@yahoo.com>
Commit: Po Lu <luangruo@yahoo.com>

    Fix last change for non-X platforms
    
    * lisp/cus-start.el: Don't announce
    `scroll-bar-adjust-thumb-portion' on non-X systems.
---
 lisp/cus-start.el | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/lisp/cus-start.el b/lisp/cus-start.el
index e895ebd..45b81e5 100644
--- a/lisp/cus-start.el
+++ b/lisp/cus-start.el
@@ -877,8 +877,10 @@ since it could result in memory overflow and make Emacs 
crash."
                              (symbol-name symbol))
                       ;; Any function from fontset.c will do.
                       (fboundp 'new-fontset))
-                     ((equal "scroll-bar-adjust-thumb-portion"
-                             (symbol-name symbol))
+                     ((or (equal "scroll-bar-adjust-thumb-portion"
+                                 (symbol-name symbol))
+                           (equal "x-scroll-event-delta-factor"
+                                  (symbol-name symbol)))
                       (featurep 'x))
                      (t t))))
     (if (not (boundp symbol))