Our wrapper commands "tl-single-app", "tl-while-x11", "tl-rsync-all" and "tl-ssh-all" all lack tab completion. "tl-single-app" and "tl-while-x11" are wrappers for any command. But tab completion doesn't work. If you try to complete grep like so; "tl-single-app gre<TAB>", you don't get any completions. "tl-rsync-all" and "tl-ssh-all" are wrappers for rsync and ssh. We should be able to match the completion for the wrapped commands.
See bug 7867 which implemented tab completion for many of our commands.