commit https://github.com/vim/vim/commit/bea1ede1c59a11ca5bf9d91cd30b7b2937b9fb41 Author: Bram Moolenaar <Bram@vim.org> Date: Thu Apr 14 19:44:36 2016 +0200 patch 7.4.1739 Problem: Messages test fails on MS-Windows. Solution: Adjust the asserts. Skip the "messages maintainer" line if not showing all messages.

" 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