patch 8.2.3462: ModeChanged only uses one character for new_mode and old_mode Commit: https://github.com/vim/vim/commit/d85931e67316e824878000d0ead122553ccef3a4 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Oct 2 16:55:39 2021 +0100 patch 8.2.3462: ModeChanged only uses one character for new_mode and old_mode Problem: The ModeChanged event only uses one character for the new_mode and old_mode values. Solution: Pass one as first argument to mode(). (issue #8856)

" gvimrc for test_gui_init.vim

if has('gui_athena') || has('gui_motif') || has('gui_gtk2') || has('gui_gtk3')
  set guiheadroom=0
  set guioptions+=p
endif