update unit test rake task

update formatting
fix success check

Rakefile

@@ -162,12 +162,12 @@ namespace :test do
     status = command = "export MODULEPATH=#{base_dir}/modules;export GEM_HOME=#{base_dir}/.vendor;"
     ['cinder', 'nova', 'glance', 'openstack', 'keystone', 'horizon', 'swift'].collect do |proj|
       Dir.chdir("modules/#{proj}") do
-      local_command = command + "bundle exec rake spec_standalone"
-      puts local_command
-      system(local_command)
+        local_command = command + "bundle exec rake spec_standalone"
+        puts local_command
+        system(local_command)
       end
     end.uniq
-    status == ['true'] ? exit(0) : exit(1)
+    exit 1 if status != [true]
   end
 
   desc 'reset test environment'