Update runtime files
diff --git a/runtime/doc/syntax.txt b/runtime/doc/syntax.txt
index 1587df5..1775af7 100644
--- a/runtime/doc/syntax.txt
+++ b/runtime/doc/syntax.txt
@@ -1,4 +1,4 @@
-*syntax.txt* For Vim version 9.0. Last change: 2022 Sep 26
+*syntax.txt* For Vim version 9.0. Last change: 2022 Oct 03
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -5376,10 +5376,11 @@
*hl-MoreMsg*
MoreMsg |more-prompt|
*hl-NonText*
-NonText '@' at the end of the window, characters from 'showbreak'
- and other characters that do not really exist in the text
- (e.g., ">" displayed when a double-wide character doesn't
- fit at the end of the line).
+NonText '@' at the end of the window, "<<<" at the start of the window
+ for 'smoothscroll', characters from 'showbreak' and other
+ characters that do not really exist in the text, such as the
+ ">" displayed when a double-wide character doesn't fit at the
+ end of the line.
*hl-Normal*
Normal Normal text.
*hl-Pmenu*