Merge branch 'tc-sh-fix-issue-5461-ce' into 'master'

Clean the test path after each spec run

See merge request gitlab-org/gitlab-ce!18035

spec/spec_helper.rb

@@ -97,6 +97,10 @@ RSpec.configure do |config|
     TestEnv.init
   end
+  config.after(:all) do
+    TestEnv.clean_test_path
+  end
+
   config.before(:example) do
     # Skip pre-receive hook check so we can use the web editor and merge.
     allow_any_instance_of(Gitlab::Git::Hook).to receive(:trigger).and_return([true, nil])