commit https://github.com/vim/vim/commit/58de0e2dcc1f2d251b74892a06d71a14973f3187 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Apr 14 15:13:46 2016 +0200 patch 7.4.1730 Problem: It is not easy to get a character out of a string. Solution: Add strgetchar() and strcharpart().

" 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