Commit: runtime(sieve): set fileformat=dos in filetype plugin

[Christian Brabandt]

runtime(sieve): set fileformat=dos in filetype plugin

Commit: https://github.com/vim/vim/commit/3cb41489dc8856959c1d586217f141ce057dc373
Author: David Mandelberg <da...@mandelberg.org>
Date: Thu Feb 20 23:22:17 2025 +0100

runtime(sieve): set fileformat=dos in filetype plugin

References:
https://datatracker.ietf.org/doc/html/rfc5228#section-2.2

closes: #16685

Signed-off-by: David Mandelberg <da...@mandelberg.org>
Signed-off-by: Christian Brabandt <c...@256bit.org>

diff --git a/runtime/ftplugin/sieve.vim b/runtime/ftplugin/sieve.vim
index 3092b5d2d..8161fe99a 100644
--- a/runtime/ftplugin/sieve.vim
+++ b/runtime/ftplugin/sieve.vim
@@ -1,20 +1,19 @@
" Vim filetype plugin file
" Language: Sieve filtering language input file
+" Maintainer: This runtime file is looking for a new maintainer.
" Previous Maintainer: Nikolai Weibull <n...@bitwi.se>
-" Latest Revision: 2008-07-09
+" Latest Revision: 2025 Feb 20

if exists("b:did_ftplugin")
finish
endif
let b:did_ftplugin = 1

-let s:cpo_save = &cpo
-set cpo&vim
-
-let b:undo_ftplugin = "setl com< cms< fo<"
+let b:undo_ftplugin = "setl com< cms< fo< ff<"

setlocal comments=s1:/*,mb:*,ex:*/,:# commentstring=#\ %s
setlocal formatoptions-=t formatoptions+=croql

-let &cpo = s:cpo_save
-unlet s:cpo_save
+" https://datatracker.ietf.org/doc/html/rfc5228#section-2.2 says
+" "newlines (CRLF, never just CR or LF)"
+setlocal fileformat=dos