patch 8.2.3709: Vim9: backtick expression expanded when not desired Commit: https://github.com/vim/vim/commit/fad2742d538123abb9b384a053fd581f2acf6bb0 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Nov 30 21:58:19 2021 +0000 patch 8.2.3709: Vim9: backtick expression expanded when not desired Problem: Vim9: backtick expression expanded when not desired. Solution: Only expand a backtick expression for commands that expand their argument. Remove a few outdated TODO comments.