commit https://github.com/vim/vim/commit/58adb14739fa240ca6020cede9ab1f1cb07bd90a Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jan 16 21:50:51 2016 +0100 patch 7.4.1108 Problem: Expanding "~" halfway a file name. Solution: Handle the file name as one name. (Marco Hinz) Add a test. Closes https://github.com/vim/vim/issues/564.

" 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