Commit: runtime(nroff,groff): update commentstyle in filetype plugins

[Christian Brabandt]

runtime(nroff,groff): update commentstyle in filetype plugins

Commit: https://github.com/vim/vim/commit/e4c157b9c1225a733a5ff73a5325a35996c07559
Author: jtmr05 <6211156...@users.noreply.github.com>
Date: Wed Jun 18 18:41:14 2025 +0200

runtime(nroff,groff): update commentstyle in filetype plugins

closes: https://github.com/vim/vim/issues/17516

Signed-off-by: jtmr05 <6211156...@users.noreply.github.com>
Signed-off-by: Eisuke Kawashima <e-k...@users.noreply.github.com>
Signed-off-by: Christian Brabandt <c...@256bit.org>

diff --git a/runtime/ftplugin/groff.vim b/runtime/ftplugin/groff.vim
index 3ebfa03c6..f62852541 100644
--- a/runtime/ftplugin/groff.vim
+++ b/runtime/ftplugin/groff.vim
@@ -2,6 +2,7 @@
" Language: groff(7)
" Maintainer: Eisuke Kawashima ( e.kawaschima+vim AT gmail.com )
" Last Change: 2025 Apr 24
+" 2025 Jun 18 by Vim Project: update commentstring option (#17516)

if exists('b:did_ftplugin')
finish
@@ -11,5 +12,8 @@ let b:nroff_is_groff = 1

runtime! ftplugin/nroff.vim

+setlocal commentstring=\#\ %s
+setlocal comments=:\#,:.\\",:\\",:'\\",:'''
+
let b:undo_ftplugin .= '| unlet! b:nroff_is_groff'
let b:did_ftplugin = 1
diff --git a/runtime/ftplugin/nroff.vim b/runtime/ftplugin/nroff.vim
index cd2680ef5..24fcc9472 100644
--- a/runtime/ftplugin/nroff.vim
+++ b/runtime/ftplugin/nroff.vim
@@ -9,6 +9,7 @@
" 2025 Feb 12 by Wu, Zhenyu <wuzh...@ustc.edu> (matchit configuration #16619)
" 2025 Apr 16 by Eisuke Kawashima (cpoptions #17121)
" 2025 Apr 24 by Eisuke Kawashima (move options from syntax to ftplugin #17174)
+" 2025 Jun 18 by Vim Project: update commentstring option (#17516)

if exists("b:did_ftplugin")
finish
@@ -19,7 +20,7 @@ let s:cpo_save = &cpo
set cpo&vim

setlocal commentstring=.\\"\ %s
-setlocal comments=:.\\"
+setlocal comments=:.\\",:\\",:'\\",:'''
setlocal sections+=Sh
setlocal define=.\s*de