patch 8.1.1778: not showing the popup window right border is confusing commit https://github.com/vim/vim/commit/8c8b88d0ccb7204bb829669885c2e886b7f483bf Author: Bram Moolenaar <Bram@vim.org> Date: Tue Jul 30 20:32:41 2019 +0200 patch 8.1.1778: not showing the popup window right border is confusing Problem: Not showing the popup window right border is confusing. Solution: Also show the border when there is no close button. (closes https://github.com/vim/vim/issues/4747)