neovim/runtime/ftplugin/calendar.vim

" Vim filetype plugin file
" Language:             calendar(1) input file
" Previous Maintainer:  Nikolai Weibull <now@bitwi.se>
" Latest Revision:      2008-07-09
"                       2024-06-02 by Riley Bruins <ribru17@gmail.com> ('commentstring')

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< inc< fo<"

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

let &cpo = s:cpo_save
unlet s:cpo_save