patch 8.1.2210: using negative offset for popup_create() does not work Commit: https://github.com/vim/vim/commit/b754b5bf6d9ac1f3654552973aa6f9c11239af3d Author: Bram Moolenaar <Bram@vim.org> Date: Thu Oct 24 19:25:00 2019 +0200 patch 8.1.2210: using negative offset for popup_create() does not work Problem: Using negative offset for popup_create() does not work. Solution: Use -1 instead of zero. (closes https://github.com/vim/vim/issues/5111)

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