Rakefile in gitlab-3.5.0 vs Rakefile in gitlab-3.6.0

@@ -4,6 +4,6 @@
 RSpec::Core::RakeTask.new(:spec) do |spec|
   spec.pattern    = FileList['spec/**/*_spec.rb']
   spec.rspec_opts = ['--color', '--format d']
 end
 
-task :default => :spec
+task default: :spec