patch 8.2.0426: some errors were not tested for Commit: https://github.com/vim/vim/commit/9b9be007e7d674f49fc2b650f840d08532b180ad Author: Bram Moolenaar <Bram@vim.org> Date: Sun Mar 22 14:41:22 2020 +0100 patch 8.2.0426: some errors were not tested for Problem: Some errors were not tested for. Solution: Add tests. (Dominique Pelle, closes https://github.com/vim/vim/issues/5824)

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