patch 8.1.1588: in :let-heredoc line continuation is recognized commit https://github.com/vim/vim/commit/e96a2498f9a2d3e93ac07431f6d4afd77f30afdf Author: Bram Moolenaar <Bram@vim.org> Date: Tue Jun 25 04:12:16 2019 +0200 patch 8.1.1588: in :let-heredoc line continuation is recognized Problem: In :let-heredoc line continuation is recognized. Solution: Do not consume line continuation. (Ozaki Kiichi, closes https://github.com/vim/vim/issues/4580)