patch 9.0.1157: "implements" only handles one interface name Commit: https://github.com/vim/vim/commit/df8f9473596c8fb18ec893de677dba455e8925b3 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jan 7 14:51:03 2023 +0000 patch 9.0.1157: "implements" only handles one interface name Problem: "implements" only handles one interface name. Solution: Handle a comma separated list of names. Check for duplicate names.

" Vim filetype plugin
" Language:	GYP
" Maintainer:	ObserverOfTime <chronobserver@disroot.org>
" Last Change:	2022 Sep 27

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

setlocal formatoptions-=t
setlocal commentstring=#\ %s comments=b:#,fb:-

let b:undo_ftplugin = 'setlocal fo< cms< com<'