commit https://github.com/vim/vim/commit/9bd547aca41799605c3a3f83444f6725c2d6eda9 Author: Bram Moolenaar <Bram@vim.org> Date: Fri Apr 1 21:00:48 2016 +0200 patch 7.4.1692 Problem: feedkeys('i', 'x') gets stuck, waits for a character to be typed. Solution: Behave like ":normal". (Yasuhiro Matsumoto)

" 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