Update runtime files
diff --git a/runtime/doc/builtin.txt b/runtime/doc/builtin.txt
index a065fce..a695547 100644
--- a/runtime/doc/builtin.txt
+++ b/runtime/doc/builtin.txt
@@ -1,4 +1,4 @@
-*builtin.txt* For Vim version 9.0. Last change: 2023 Feb 14
+*builtin.txt* For Vim version 9.0. Last change: 2023 Feb 27
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -2569,8 +2569,7 @@
extendnew({expr1}, {expr2} [, {expr3}]) *extendnew()*
Like |extend()| but instead of adding items to {expr1} a new
List or Dictionary is created and returned. {expr1} remains
- unchanged. Items can still be changed by {expr2}, if you
- don't want that use |deepcopy()| first.
+ unchanged.
feedkeys({string} [, {mode}]) *feedkeys()*
@@ -9811,6 +9810,8 @@
{time} is the waiting time in milliseconds. This is the
minimum time before invoking the callback. When the system is
busy or Vim is not waiting for input the time will be longer.
+ Zero can be used to execute the callback when Vim is back in
+ the main loop.
{callback} is the function to call. It can be the name of a
function or a |Funcref|. It is called with one argument, which