Don't show stdout from collectstatic during tests.

rakefile

@@ -134,7 +134,11 @@ TEST_TASKS = []
 
         desc "Run collectstatic in the specified environment"
         task "#{system}:collectstatic:#{env}" => :predjango do
-            sh("#{django_admin(system, env, 'collectstatic', '--noinput')}")
+            sh("#{django_admin(system, env, 'collectstatic', '--noinput')} > /tmp/collectstatic.out") do |ok, status|
+                if !ok
+                    abort "collectstatic failed!"
+                end
+            end
         end
     end
 end
@@ -270,4 +274,4 @@ task :doc => :builddocs do
     Dir.chdir('docs/build/html') do
         sh('open index.html')
     end
-end
+end