patch 8.1.0506: modeline test fails when run by root commit https://github.com/vim/vim/commit/9691f82f862ed18c2e3e48f9d2cd902bb947f803 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Nov 3 19:06:25 2018 +0100 patch 8.1.0506: modeline test fails when run by root Problem: Modeline test fails when run by root. Solution: Set 'modeline' for the test. (James McCoy, closes https://github.com/vim/vim/issues/3592)

" 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