remove_labels = opts[:remove].to_set_of_symbols ","
Trollop::die "nothing to do: no labels to add or remove" if add_labels.empty? && remove_labels.empty?
remove_labels = opts[:remove].to_set_of_symbols ","
Trollop::die "nothing to do: no labels to add or remove" if add_labels.empty? && remove_labels.empty?