commit https://github.com/vim/vim/commit/c9fb77c69244870a97384152f20845665c19fe39 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Aug 9 21:51:40 2016 +0200 patch 7.4.2188 Problem: Completion does not work properly with some plugins. Solution: Revert the part related to typing CTRL-E. (closes https://github.com/vim/vim/issues/972)

" 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