Slight bug in local dynamic list documentation

[mcuma]

I am too lazy to do pull request, so, I report this small error this way.

In https://osc.github.io/ood-documentation/master/app-development/tutorials-interactive-apps/add-custom-queue/local-dynamic-list.html, section 4, the code should be
...
output, status = Open3.capture2e(cmd)
if status.success?
queues = output.split("\n").map(&:strip).reject(&:blank?).sort
else
...
not
...
queues = out.split("\n").map(&:strip).reject(&:blank?).sort
...