args = conn_opts.map(&:to_s) + [prefix]
raise "#{cmd} failed" unless system cmd, *args
- tempfiles = %w(nodes node_tags current_nodes current_node_tags)
+ tempfiles = %w[nodes node_tags current_nodes current_node_tags]
.map { |base| prefix + base }
nodes, node_tags, current_nodes, current_node_tags = tempfiles
end