patch 8.2.4171: cannot invoke option function using autoload import Commit: https://github.com/vim/vim/commit/f0e7e6365e86ca42c177fe165d3097d1bfb35f72 Author: Bram Moolenaar <Bram@vim.org> Date: Fri Jan 21 13:29:56 2022 +0000 patch 8.2.4171: cannot invoke option function using autoload import Problem: Cannot invoke option function using autoload import. Solution: Expand the import to an autoload function name. (closes https://github.com/vim/vim/issues/9578)

" 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