patch 8.0.0274: possible recursive screen updating causes trouble commit https://github.com/vim/vim/commit/070b33da93ad3a191664bb61f5ccc50781460c03 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Jan 31 21:53:39 2017 +0100 patch 8.0.0274: possible recursive screen updating causes trouble Problem: When update_single_line() is called recursively, or another screen update happens while it is busy, errors may occur. Solution: Check and update updating_screen. (Christian Brabandt)

" Settings for test script execution
" Always use "sh", don't use the value of "$SHELL".
set shell=sh

source setup.vim