#675 - Fix a failing rspec spec in pipeline whitelist PR.

Needed for pipeline whitelist PR. It fails two spec. This one (fixed by this commit) and another (spec/views/pipelines/_pipelines_selector_html_spec.rb).

For that one, line 53 of the spec needs to be changed from:

```
expect(response).to have_selector("div.select_all_none_panel div#show_new_pipelines_container label#show_new_pipelines_label[for='show_new_pipelines']", text: "Show New Pipelines")
```

to 

```
expect(response).to have_selector("div.select_all_none_panel div#show_new_pipelines_container label#show_new_pipelines_label[for='show_new_pipelines']", text: "Show newly created pipelines")
```