From d8a7e5fdbb7d94f06e30aedaea42028caec52c95 Mon Sep 17 00:00:00 2001
From: ZyX <kp-pav@yandex.ru>
Date: Thu, 23 Feb 2017 00:59:11 +0300
Subject: eval: Forbid (un)locking b:changedtick

Port of vim-patch:8.0.0343
---
 runtime/doc/eval.txt | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'runtime')

diff --git a/runtime/doc/eval.txt b/runtime/doc/eval.txt
index 1105601a0e..88ab502ab6 100644
--- a/runtime/doc/eval.txt
+++ b/runtime/doc/eval.txt
@@ -8606,9 +8606,12 @@ This does NOT work: >
 				:lockvar v
 				:let v = 'asdf'		" fails!
 				:unlet v
-<							*E741*
+<							*E741* *E940*
 			If you try to change a locked variable you get an
-			error message: "E741: Value is locked: {name}"
+			error message: "E741: Value is locked: {name}".
+			If you try to lock or unlock a built-in variable you 
+			will get an error message "E940: Cannot lock or unlock 
+			variable {name}".
 
 			[depth] is relevant when locking a |List| or
 			|Dictionary|.  It specifies how deep the locking goes:
-- 
cgit