Reformatting go code.

Public PR: https://github.com/google/tink/pull/68.

Change-Id: Ib87063d72017d34f96872c2de1088df96f03371c
ORIGINAL_AUTHOR=Thai Duong <[email protected]>
GitOrigin-RevId: 180def9971226c35baa93407d654d63cf719e2ba
diff --git a/go/aead/aead_config_test.go b/go/aead/aead_config_test.go
index 0a37186..b83c014 100644
--- a/go/aead/aead_config_test.go
+++ b/go/aead/aead_config_test.go
@@ -13,30 +13,31 @@
 // limitations under the License.
 //
 ////////////////////////////////////////////////////////////////////////////////
+
 package aead_test
 
 import (
-  "testing"
-  "github.com/google/tink/go/tink/tink"
-  "github.com/google/tink/go/aead/aead"
+	"github.com/google/tink/go/aead/aead"
+	"github.com/google/tink/go/tink/tink"
+	"testing"
 )
 
 func TestConfigInstance(t *testing.T) {
-  c := aead.Config()
-  if c == nil {
-    t.Errorf("Config() returns nil")
-  }
+	c := aead.Config()
+	if c == nil {
+		t.Errorf("Config() returns nil")
+	}
 }
 
 func TestConfigRegistration(t *testing.T) {
-  success, err := aead.Config().RegisterStandardKeyTypes()
-  if !success || err != nil {
-    t.Errorf("cannot register standard key types")
-  }
-  // check for AES-GCM key manager
-  keyManager, err := tink.Registry().GetKeyManager(aead.AES_GCM_TYPE_URL)
-  if err != nil {
-    t.Errorf("unexpected error: %s", err)
-  }
-  var _ = keyManager.(*aead.AesGcmKeyManager)
-}
\ No newline at end of file
+	success, err := aead.Config().RegisterStandardKeyTypes()
+	if !success || err != nil {
+		t.Errorf("cannot register standard key types")
+	}
+	// check for AES-GCM key manager
+	keyManager, err := tink.Registry().GetKeyManager(aead.AES_GCM_TYPE_URL)
+	if err != nil {
+		t.Errorf("unexpected error: %s", err)
+	}
+	var _ = keyManager.(*aead.AesGcmKeyManager)
+}