patch 8.1.0804: crash when setting v:errmsg to empty list commit https://github.com/vim/vim/commit/4b9e91f0ba02192e4592a5c4a9bdcdd6e9efeb5e Author: Bram Moolenaar <Bram@vim.org> Date: Thu Jan 24 13:58:11 2019 +0100 patch 8.1.0804: crash when setting v:errmsg to empty list Problem: Crash when setting v:errmsg to empty list. (Jaon Franklin) Solution: Separate getting value and assigning result.

" Settings for test script execution
" Always use "COMMAND.COM", don't use the value of "$SHELL".
set shell=c:\COMMAND.COM shellquote= shellxquote= shellcmdflag=/c shellredir=>
" This is used only when the +eval feature is available.
if executable("cmd.exe")
   set shell=cmd.exe
endif

source setup.vim