Update zsh completion to use debugcomplete -v instead of parsing help
adding aadding badding cadding dadding dir/bar/fooadding dir/xadding dir/yadding e% inserve? hg.pid% cleanC aC bC cC dC dir/bar/fooC dir/xC dir/yC e% all? hg.pidC aC bC cC dC dir/bar/fooC dir/xC dir/yC e% path patternsM dir/x? hg.pidM dir/xM x