patch 8.2.4492: no error if an option is given a value with ":let &opt = val" Commit: https://github.com/vim/vim/commit/8ccbbeb620dcc73154de29c51100fe815cefe109 Author: Bram Moolenaar <Bram@vim.org> Date: Wed Mar 2 19:49:38 2022 +0000 patch 8.2.4492: no error if an option is given a value with ":let &opt = val" Problem: No error if an option is given an invalid value with ":let &opt = val". Solution: Give the error. (closes #9864)

" 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