Merge branch 'fix-spinach-atom-feed-failure-due-to-carriage-returns' into 'master'

Fix atom feed spinach failure

## What does this MR do?

Replaces all carriage returns in the expected commit description.

Is a partial fix to...

> spinach 5 10 https://gitlab.com/gitlab-org/gitlab-ce/builds/5132637 - partial fix in !6910

As you can see, the other half of the fix to this build is in !6910.

## Are there points in the code the reviewer needs to double check?

## Why was this MR needed?

Failed spinach tests

## Screenshots (if relevant)

## Does this MR meet the acceptance criteria?

- [ ] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- [ ] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)
- [ ] API support added
- Tests
  - [ ] Added for this feature/bug
  - [ ] All builds are passing
- [ ] Conform by the [merge request performance guides](http://docs.gitlab.com/ce/development/merge_request_performance_guidelines.html)
- [ ] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [ ] Branch has no merge conflicts with `master` (if it does - rebase it please)
- [ ] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

## What are the relevant issue numbers?

See merge request !6922

features/steps/project/commits/commits.rb

@@ -21,7 +21,7 @@ class Spinach::Features::ProjectCommits < Spinach::FeatureSteps
     expect(response_headers['Content-Type']).to have_content("application/atom+xml")
     expect(body).to have_selector("title", text: "#{@project.name}:master commits")
     expect(body).to have_selector("author email", text: commit.author_email)
-    expect(body).to have_selector("entry summary", text: commit.description[0..10])
+    expect(body).to have_selector("entry summary", text: commit.description[0..10].delete("\r"))
   end
 
   step 'I click on tag link' do