patch 8.2.1067: expression "!expr->func()" does not work Commit: https://github.com/vim/vim/commit/0b1cd52ff6bf690388f892be686a91721a082e55 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jun 27 13:11:50 2020 +0200 patch 8.2.1067: expression "!expr->func()" does not work Problem: Expression "!expr->func()" does not work. Solution: Apply plus and minus earlier. (closes https://github.com/vim/vim/issues/6348)

" Vim filetype plugin file
" Language:	groovy
" Maintainer:	Justin M. Keyes <justinkz@gmail.com>
" Last Change:	2016 May 22

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

let s:cpo_save = &cpo
set cpo-=C

let b:undo_ftplugin = 'setlocal commentstring<'

setlocal commentstring=//%s

let &cpo = s:cpo_save
unlet s:cpo_save