add 'ExtractHeader' method to object storage return types
diff --git a/acceptance/openstack/objectstorage/v1/objects_test.go b/acceptance/openstack/objectstorage/v1/objects_test.go
index 987f733..a8de338 100644
--- a/acceptance/openstack/objectstorage/v1/objects_test.go
+++ b/acceptance/openstack/objectstorage/v1/objects_test.go
@@ -30,8 +30,9 @@
 
 	// Create a container to hold the test objects.
 	cName := tools.RandomString("test-container-", 8)
-	createres := containers.Create(client, cName, nil)
-	th.AssertNoErr(t, createres.Err)
+	header, err := containers.Create(client, cName, nil).ExtractHeader()
+	th.AssertNoErr(t, err)
+	t.Logf("Create object headers: %+v\n", header)
 
 	// Defer deletion of the container until after testing.
 	defer func() {
@@ -55,7 +56,7 @@
 	}()
 
 	ons := make([]string, 0, len(oNames))
-	err := objects.List(client, cName, &objects.ListOpts{Full: false, Prefix: "test-object-"}).EachPage(func(page pagination.Page) (bool, error) {
+	err = objects.List(client, cName, &objects.ListOpts{Full: false, Prefix: "test-object-"}).EachPage(func(page pagination.Page) (bool, error) {
 		names, err := objects.ExtractNames(page)
 		th.AssertNoErr(t, err)
 		ons = append(ons, names...)
diff --git a/acceptance/rackspace/objectstorage/v1/cdnobjects_test.go b/acceptance/rackspace/objectstorage/v1/cdnobjects_test.go
index dfc2dca..6e477ae 100644
--- a/acceptance/rackspace/objectstorage/v1/cdnobjects_test.go
+++ b/acceptance/rackspace/objectstorage/v1/cdnobjects_test.go
@@ -25,9 +25,9 @@
 		th.AssertNoErr(t, deleteResult.Err)
 	}()
 
-	createObjResult := raxObjects.Create(raxClient, "gophercloud-test", "test-object", bytes.NewBufferString("gophercloud cdn test"), nil)
-	th.AssertNoErr(t, createObjResult.Err)
-	t.Logf("Headers from Create Object request: %+v\n", createObjResult.Header)
+	header, err := raxObjects.Create(raxClient, "gophercloud-test", "test-object", bytes.NewBufferString("gophercloud cdn test"), nil).ExtractHeader()
+	th.AssertNoErr(t, err)
+	t.Logf("Headers from Create Object request: %+v\n", header)
 	defer func() {
 		deleteResult := raxObjects.Delete(raxClient, "gophercloud-test", "test-object", nil)
 		th.AssertNoErr(t, deleteResult.Err)