commit https://github.com/vim/vim/commit/dc0ccaee68ca24d10050117fbec757ad33590a17 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Oct 9 17:28:01 2016 +0200 patch 8.0.0027 Problem: A channel is closed when reading on stderr or stdout fails, but there may still be something to read on another part. Solution: Turn ch_to_be_closed into a bitfield. (Ozaki Kiichi)

" 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