patch 8.2.1313: Vim9 script: cannot assign to environment variable Commit: https://github.com/vim/vim/commit/b5ed266037dea49024e00c4e1f9c89f3a9ebaa60 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Jul 28 22:38:37 2020 +0200 patch 8.2.1313: Vim9 script: cannot assign to environment variable Problem: Vim9 script: cannot assign to environment variable. Solution: Recognize environment variable assignment. (closes https://github.com/vim/vim/issues/6548) Also options and registers.

" Vim plugin for downloading spell files
" Maintainer:  Bram Moolenaar <Bram@vim.org>
" Last Change: 2006 Feb 01

" Exit quickly when:
" - this plugin was already loaded
" - when 'compatible' is set
" - some autocommands are already taking care of spell files
if exists("loaded_spellfile_plugin") || &cp || exists("#SpellFileMissing")
  finish
endif
let loaded_spellfile_plugin = 1

" The function is in the autoload directory.
autocmd SpellFileMissing * call spellfile#LoadFile(expand('<amatch>'))