patch 8.2.1030: reducing size of a terminal window may cause a crash Commit: https://github.com/vim/vim/commit/da58134eedf43ae4b9013c93ecbdf55e4da4b8a3 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jun 21 17:57:32 2020 +0200 patch 8.2.1030: reducing size of a terminal window may cause a crash Problem: Reducing size of a terminal window may cause a crash. Solution: Make sure the row and column don't become negative. (closes https://github.com/vim/vim/issues/6273)