patch 8.2.0890: no color in terminal window when 'termguicolor' is set Commit: https://github.com/vim/vim/commit/1e5f8f6d65b2ecff3d93d9fdbdd17c7a2ab9cc3d Author: Bram Moolenaar <Bram@vim.org> Date: Tue Jun 2 23:18:24 2020 +0200 patch 8.2.0890: no color in terminal window when 'termguicolor' is set Problem: No color in terminal window when 'termguicolor' is set. Solution: Clear the underline color. (closes https://github.com/vim/vim/issues/6186)

" Settings for test script execution
" Always use "sh", don't use the value of "$SHELL".
set shell=sh

" Only when the +eval feature is present. 
if 1
  " While some tests overwrite $HOME to prevent them from polluting user files,
  " we need to remember the original value so that we can tell external systems
  " where to ask about their own user settings.
  let g:tester_HOME = $HOME
endif

source setup.vim