patch 8.1.1363: ":vert options" does not make a vertical split commit https://github.com/vim/vim/commit/e0b5949a3b28be9940bb8a46b2579e960100b83b Author: Bram Moolenaar <Bram@vim.org> Date: Tue May 21 20:54:45 2019 +0200 patch 8.1.1363: ":vert options" does not make a vertical split Problem: ":vert options" does not make a vertical split. Solution: Pass the right modifiers in $OPTWIN_CMD. (Ken Takata, closes #4401)