Update runtime files
diff --git a/runtime/doc/repeat.txt b/runtime/doc/repeat.txt
index e344ec7..04d85d7 100644
--- a/runtime/doc/repeat.txt
+++ b/runtime/doc/repeat.txt
@@ -1,4 +1,4 @@
-*repeat.txt* For Vim version 8.2. Last change: 2021 Jun 27
+*repeat.txt* For Vim version 8.2. Last change: 2021 Sep 09
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -893,8 +893,12 @@
Sets a breakpoint, that will break whenever the {expression}
evaluates to a different value. Example: >
:breakadd expr g:lnum
-
< Will break, whenever the global variable lnum changes.
+
+ Errors in evaluation are suppressed, you can use the name of a
+ variable that does not exist yet. This also means you will
+ not notice anything if the expression has a mistake.
+
Note if you watch a |script-variable| this will break
when switching scripts, since the script variable is only
valid in the script where it has been defined and if that