refactor: remove copyright year; add newline

Author: mrjoelkamp

NOTICE

@@ -1,5 +1,5 @@
 Docker attest
-Copyright 2024 Docker attest authors
+Copyright Docker attest authors
 
 This product includes software developed at Docker, Inc. (https://www.docker.com).
 

attestation/attestation.go

@@ -1,5 +1,5 @@
 /*
-   Copyright 2024 Docker attest authors
+   Copyright Docker attest authors
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
@@ -13,6 +13,7 @@
    See the License for the specific language governing permissions and
    limitations under the License.
 */
+
 package attestation
 
 import (

attestation/attestation_test.go

@@ -1,5 +1,5 @@
 /*
-   Copyright 2024 Docker attest authors
+   Copyright Docker attest authors
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
@@ -13,6 +13,7 @@
    See the License for the specific language governing permissions and
    limitations under the License.
 */
+
 package attestation_test
 
 import (

attestation/example_attestation_manifest_test.go

@@ -1,5 +1,5 @@
 /*
-   Copyright 2024 Docker attest authors
+   Copyright Docker attest authors
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
@@ -13,6 +13,7 @@
    See the License for the specific language governing permissions and
    limitations under the License.
 */
+
 package attestation_test
 
 import (

attestation/layout.go

@@ -1,5 +1,5 @@
 /*
-   Copyright 2024 Docker attest authors
+   Copyright Docker attest authors
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
@@ -13,6 +13,7 @@
    See the License for the specific language governing permissions and
    limitations under the License.
 */
+
 package attestation
 
 import (

attestation/layout_test.go

@@ -1,5 +1,5 @@
 /*
-   Copyright 2024 Docker attest authors
+   Copyright Docker attest authors
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
@@ -13,6 +13,7 @@
    See the License for the specific language governing permissions and
    limitations under the License.
 */
+
 package attestation_test
 
 import (

attestation/mock.go

@@ -1,5 +1,5 @@
 /*
-   Copyright 2024 Docker attest authors
+   Copyright Docker attest authors
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
@@ -13,6 +13,7 @@
    See the License for the specific language governing permissions and
    limitations under the License.
 */
+
 package attestation
 
 import (

attestation/referrers.go

@@ -1,5 +1,5 @@
 /*
-   Copyright 2024 Docker attest authors
+   Copyright Docker attest authors
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
@@ -13,6 +13,7 @@
    See the License for the specific language governing permissions and
    limitations under the License.
 */
+
 package attestation
 
 import (

attestation/referrers_test.go

@@ -1,5 +1,5 @@
 /*
-   Copyright 2024 Docker attest authors
+   Copyright Docker attest authors
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
@@ -13,6 +13,7 @@
    See the License for the specific language governing permissions and
    limitations under the License.
 */
+
 package attestation_test
 
 import (

attestation/registry.go

@@ -1,5 +1,5 @@
 /*
-   Copyright 2024 Docker attest authors
+   Copyright Docker attest authors
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
@@ -13,6 +13,7 @@
    See the License for the specific language governing permissions and
    limitations under the License.
 */
+
 package attestation
 
 import (