commit https://github.com/vim/vim/commit/3f242a844e83a5a04943869f6e3bcbf8650dc465 Author: Bram Moolenaar <Bram@vim.org> Date: Fri Mar 18 19:39:25 2016 +0100 patch 7.4.1590 Problem: Warning for shadowed variable. (Christian Brabandt) Solution: Move the variable into a local block.

" 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