patch 8.2.2656: some command line arguments and regexp errors not tested Commit: https://github.com/vim/vim/commit/a2b3e7dc9201fb3d8782c6b4ab53862160e254da Author: Bram Moolenaar <Bram@vim.org> Date: Fri Mar 26 17:24:34 2021 +0100 patch 8.2.2656: some command line arguments and regexp errors not tested Problem: Some command line arguments and regexp errors not tested. Solution: Add a few test cases. (Dominique Pell?, closes https://github.com/vim/vim/issues/8013)