patch 8.1.1757: text added with appendbufline() isn't displayed commit https://github.com/vim/vim/commit/298466629119eda501cfdf7824797f05045e67ca Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jul 27 17:39:15 2019 +0200 patch 8.1.1757: text added with appendbufline() isn't displayed Problem: Text added with appendbufline() to another buffer isn't displayed. Solution: Update topline. (partly by Christian Brabandt, closes https://github.com/vim/vim/issues/4718)

" 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