patch 8.2.3392: augroup completion escapes regexp pattern characters Commit: https://github.com/vim/vim/commit/b4d82e2a8d610c00139a74970df772eece2daf1c Author: Bram Moolenaar <Bram@vim.org> Date: Wed Sep 1 13:03:39 2021 +0200 patch 8.2.3392: augroup completion escapes regexp pattern characters Problem: augroup completion escapes regexp pattern characters. Solution: Do not escape the augroup name. (closes https://github.com/vim/vim/issues/8826)