Mention in NEWS that scroll-bar-adjust-thumb-portion is for X only. Bug#13503.

diff --git a/etc/NEWS b/etc/NEWS
index 07469e2da07bb4a758ef45b0b5a0b5860091528a..3e8bd3eb6eb702de87b509822438de857d1896a1 100644 (file)
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -59,6 +59,9 @@ libacl.  On MS-Windows, the NT Security APIs are used to emulate the
 POSIX ACL interfaces.
 
 ** New option `scroll-bar-adjust-thumb-portion'.
+Available only on X, this option allows to control over-scrolling
+using the scroll bar (i.e. dragging the thumb down even when the end
+of the buffer is visible).
 
 * Editing Changes in Emacs 24.4