patch 8.2.2719: Vim9: appending to dict item doesn't work in a :def function Commit: https://github.com/vim/vim/commit/e42939af87be3adad8c08ceb454e3a31114d7165 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Apr 5 17:11:17 2021 +0200 patch 8.2.2719: Vim9: appending to dict item doesn't work in a :def function Problem: Vim9: appending to dict item doesn't work in a :def function. Solution: Implement assignment with operator on indexed item.

" vimrc for test_gui_init.vim

" Note that this flag must be added in the .vimrc file, before switching on
" syntax or filetype recognition (when the |gvimrc| file is sourced the system
" menu has already been loaded; the ":syntax on" and ":filetype on" commands
" load the menu too).
set guioptions+=M