Commit: runtime(help): Unset `'comments'` and `'cms'` options

[Christian Brabandt]

runtime(help): Unset `'comments'` and `'cms'` options

Commit: https://github.com/vim/vim/commit/adfea9b4e68f39744fcb6ce7840e1c3c3b4637db
Author: Phạm Bình An <111893501+...@users.noreply.github.com>
Date: Fri Aug 8 10:44:18 2025 +0200

runtime(help): Unset `'comments'` and `'cms'` options

Problem: Vim's help file doesn't have any syntax for comments, but
'comments' and 'commentstring' are still set in the help
buffer.
Solution: Unset 'comments' and 'cms' in help buffer

closes: #17889

Signed-off-by: Phạm Bình An <111893501+...@users.noreply.github.com>
Signed-off-by: Christian Brabandt <c...@256bit.org>

diff --git a/runtime/ftplugin/help.vim b/runtime/ftplugin/help.vim
index 0109c1752..e8651b5d5 100644
--- a/runtime/ftplugin/help.vim
+++ b/runtime/ftplugin/help.vim
@@ -3,6 +3,7 @@
" Previous Maintainer: Nikolai Weibull <n...@bitwi.se>
" Last Change: 2025 Apr 08
" 2025 Apr 08 by Vim project (set 'omnifunc' and 'iskeyword', #17073)
+" 2025 Aug 08 by Vim project (unset comment options, #17889)

if exists("b:did_ftplugin")
finish
@@ -12,7 +13,9 @@ let b:did_ftplugin = 1
let s:cpo_save = &cpo
set cpo&vim

-let b:undo_ftplugin = "setl isk< fo< tw< cole< cocu< keywordprg< omnifunc<"
+let b:undo_ftplugin = "setl isk< fo< tw< cole< cocu< keywordprg< omnifunc< comments< cms<"
+
+setl comments= cms=

setlocal formatoptions+=tcroql textwidth=78 keywordprg=:help omnifunc=s:HelpComplete
let &l:iskeyword='!-~,^*,^|,^",192-255'