/usr/share/vim/vim80/ftplugin/groovy.vim is in vim-runtime 2:8.0.1453-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | " 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
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