Rubocop should be happier

- Rubocop was sad, this fix makes it happy

Signed-off-by: Robert Marshall <rmarshall@gitlab.com>

spec/chef/recipes/gitaly_spec.rb

@@ -501,7 +501,7 @@ RSpec.describe 'gitaly' do
     context 'with a socket directory set' do
       before do
-        stub_gitlab_rb(gitlab_workhorse: { listen_addr: '/fake/workhorse/socket', sockets_directory: '/fake/workhorse/sockets'})
+        stub_gitlab_rb(gitlab_workhorse: { listen_addr: '/fake/workhorse/socket', sockets_directory: '/fake/workhorse/sockets' })
       end
       it 'create config file with provided values' do