patch 8.2.0067: ERROR_UNKNOWN clashes on some systems Commit: https://github.com/vim/vim/commit/ef140544f6703a7a4c0f6a15f610508ed6b09e89 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Dec 31 21:27:13 2019 +0100 patch 8.2.0067: ERROR_UNKNOWN clashes on some systems Problem: ERROR_UNKNOWN clashes on some systems. Solution: Rename ERROR_ to FCERR_. (Ola S?der, closes https://github.com/vim/vim/issues/5415)

" 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