patch 8.2.3911: Vim9: type check for filter() does not accept unknown Commit: https://github.com/vim/vim/commit/ef8f04b1d1daf2e0be8fa38dedcae84ebfc5ffb4 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Dec 27 12:29:19 2021 +0000 patch 8.2.3911: Vim9: type check for filter() does not accept unknown Problem: Vim9: type check for filter() does not accept unknown. Solution: Also accept unknown for the return type. (closes https://github.com/vim/vim/issues/9413)

" Vim filetype plugin file
" Language:    Logcheck
" Maintainer:  Debian Vim Maintainers
" Last Change: 2018 Dec 27
" License:     Vim License
" URL: https://salsa.debian.org/vim-team/vim-debian/blob/master/ftplugin/logcheck.vim

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

let b:undo_ftplugin = 'setl fo<'

" Do not hard-wrap non-comment lines since each line is a self-contained
" regular expression
setlocal formatoptions-=t