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-rw-r--r--runtime/doc/builtin.txt2
1 files changed, 1 insertions, 1 deletions
diff --git a/runtime/doc/builtin.txt b/runtime/doc/builtin.txt
index 2f6961d7dc..6a5ec1bacb 100644
--- a/runtime/doc/builtin.txt
+++ b/runtime/doc/builtin.txt
@@ -156,7 +156,7 @@ digraph_setlist({digraphlist}) Boolean register multiple |digraph|s
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