patch 9.0.1727: minor problems with the teapot Commit: https://github.com/vim/vim/commit/b0efa49ed179d3aa1fa0358d4c3c6d35a0efb291 Author: Sean Dewar <seandewar@users.noreply.github.com> Date: Sat Jul 8 10:35:19 2023 +0100 patch 9.0.1727: minor problems with the teapot Problem: minor problems with the teapot() Solution: remove the null check, update documentation Update the builtin-function-list entry. (It implicitly returns 0, but such functions usually use "none") Also, tv_get_string_strict() can not return NULL, so remove that check closes: #12647 Signed-off-by: Christian Brabandt <cb@256bit.org> Co-authored-by: Sean Dewar <seandewar@users.noreply.github.com>

--- a/runtime/doc/builtin.txt
+++ b/runtime/doc/builtin.txt
@@ -156,7 +156,7 @@ digraph_setlist({digraphlist})	Boolean	r
 echoraw({expr})			none	output {expr} as-is
 empty({expr})			Number	|TRUE| if {expr} is empty
 environ()			Dict	return environment variables
-err_teapot()			Number	produce error 418
+err_teapot([{expr}])		none	give E418, or E503 if {expr} is |TRUE|
 escape({string}, {chars})	String	escape {chars} in {string} with '\'
 eval({string})			any	evaluate {string} into its value
 eventhandler()			Number	|TRUE| if inside an event handler