patch 8.1.0559: command line completion not sufficiently tested commit https://github.com/vim/vim/commit/b513d3079bbe3f59a1f1a3d6931939a76cd7e54a Author: Bram Moolenaar <Bram@vim.org> Date: Sun Dec 2 14:55:08 2018 +0100 patch 8.1.0559: command line completion not sufficiently tested Problem: Command line completion not sufficiently tested. Solution: Add more tests. (Dominique Pelle, closes https://github.com/vim/vim/issues/3622)