runtime(comment): handle special chars ^$[ robustly

Commit: 
https://github.com/vim/vim/commit/aef2e53cf8f331a0566857ac80a89a67e0d77722
Author: Maxim Kim <haba...@gmail.com>
Date:   Fri Jun 13 20:18:50 2025 +0200

    runtime(comment): handle special chars ^$[ robustly
    
    Make sure comment toggling works when 'commentstring' contains
    any of the following regex special characters by escaping them:
    
    ^ $ [
    
    closes: #17537
    
    Signed-off-by: Maxim Kim <haba...@gmail.com>
    Signed-off-by: Christian Brabandt <c...@256bit.org>

diff --git a/runtime/pack/dist/opt/comment/autoload/comment.vim 
b/runtime/pack/dist/opt/comment/autoload/comment.vim
index f678a98fa..74e091c35 100644
--- a/runtime/pack/dist/opt/comment/autoload/comment.vim
+++ b/runtime/pack/dist/opt/comment/autoload/comment.vim
@@ -1,7 +1,7 @@
 vim9script
 
 # Maintainer: Maxim Kim <haba...@gmail.com>
-# Last Update: 2025-06-12
+# Last Update: 2025-06-13
 #
 # Toggle comments
 # Usage:
@@ -19,7 +19,7 @@ export def Toggle(...args: list<string>): string
     if empty(&cms) || !&ma | return '' | endif
     var cms = substitute(substitute(&cms, '\S\zs%s\s*', ' %s', ''), '%s\ze\S', 
'%s ', '')
     var [lnum1, lnum2] = [line("'["), line("']")]
-    var cms_l = split(escape(cms, '*.\'), '\s*%s\s*')
+    var cms_l = split(escape(cms, '*.\^$['), '\s*%s\s*')
 
     var first_col = indent(lnum1)
     var start_col = getpos("'[")[2] - 1

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