Update runtime files.
diff --git a/runtime/doc/autocmd.txt b/runtime/doc/autocmd.txt
index a29c5dd..dfd7dcb 100644
--- a/runtime/doc/autocmd.txt
+++ b/runtime/doc/autocmd.txt
@@ -1,4 +1,4 @@
-*autocmd.txt* For Vim version 8.2. Last change: 2020 Dec 10
+*autocmd.txt* For Vim version 8.2. Last change: 2020 Dec 19
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -851,6 +851,8 @@
when it's used. The pattern is matched
against the function name. Both <amatch> and
<afile> are set to the name of the function.
+ Not triggered when compiling a |Vim9|
+ function.
NOTE: When writing Vim scripts a better
alternative is to use an autoloaded function.
See |autoload-functions|.