Fix copyright date, add happy path test case

Signed-off-by: Andy Goldstein <andy.goldstein@gmail.com>

pkg/cloudprovider/gcp/object_store_test.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2019 the Heptio Ark contributors.
+Copyright 2018 the Heptio Ark contributors.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
@@ -60,6 +60,12 @@ func TestPutObject(t *testing.T) {
 		closeErr    error
 		expectedErr error
 	}{
+		{
+			name:        "No errors returns nil",
+			closeErr:    nil,
+			writeErr:    nil,
+			expectedErr: nil,
+		},
 		{
 			name:        "Close() errors are returned",
 			closeErr:    errors.New("error closing"),