patch 8.2.2603: Vim9: no effect if user command is also a function Commit: https://github.com/vim/vim/commit/77b10ffad4ebad15022614be4db2745f6a90f405 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Mar 14 13:21:35 2021 +0100 patch 8.2.2603: Vim9: no effect if user command is also a function Problem: Vim9: no effect if user command is also a function. Solution: Check for paren following. (closes https://github.com/vim/vim/issues/7960)

" 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