patch 8.2.2964: Vim9: hang when using space after -> Commit: https://github.com/vim/vim/commit/a733042b124357225e4081e10ef28591236c6077 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Jun 8 20:46:45 2021 +0200 patch 8.2.2964: Vim9: hang when using space after -> Problem: Vim9: hang when using space after ->. (Naohiro Ono) Solution: Skip over white space to find the function name. (closes https://github.com/vim/vim/issues/8341)

" Vim filetype plugin file
" Language:             m4
" Previous Maintainer:  Nikolai Weibull <now@bitwi.se>
" Latest Revision:      2008-07-09

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< fo<"

setlocal comments=:#,:dnl commentstring=dnl\ %s
setlocal formatoptions-=t formatoptions+=croql

let &cpo = s:cpo_save
unlet s:cpo_save