patch 8.1.0542: shiftwidth() does not take 'vartabstop' into account commit https://github.com/vim/vim/commit/f951416a8396a54bbbe21de1a8b16716428549f2 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Nov 22 03:08:29 2018 +0100 patch 8.1.0542: shiftwidth() does not take 'vartabstop' into account Problem: shiftwidth() does not take 'vartabstop' into account. Solution: Use the cursor position or a position explicitly passed. Also make >> and << work better with 'vartabstop'. (Christian Brabandt)

" 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