Update sbt-header to apply standard Apache Header for new sources

project/CopyrightHeader.scala

@@ -47,7 +47,7 @@ trait CopyrightHeader extends AutoPlugin {
         (Test / compile).value
       })
 
-  val apacheHeader: String =
+  val apacheFromAkkaSourceHeader: String =
     """Licensed to the Apache Software Foundation (ASF) under one or more
       |license agreements; and to You under the Apache License, version 2.0:
       |
@@ -56,6 +56,23 @@ trait CopyrightHeader extends AutoPlugin {
       |This file is part of the Apache Pekko project, which was derived from Akka.
       |""".stripMargin
 
+  val apacheHeader: String =
+    """Licensed to the Apache Software Foundation (ASF) under one or more
+      |contributor license agreements. See the NOTICE file distributed with
+      |this work for additional information regarding copyright ownership.
+      |The ASF licenses this file to You under the Apache License, Version 2.0
+      |(the "License"); you may not use this file except in compliance with
+      |the License. You may obtain a copy of the License at
+      |
+      |   http://www.apache.org/licenses/LICENSE-2.0
+      |
+      |Unless required by applicable law or agreed to in writing, software
+      |distributed under the License is distributed on an "AS IS" BASIS,
+      |WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+      |See the License for the specific language governing permissions and
+      |limitations under the License.
+      |""".stripMargin
+
   val apacheSpdxHeader: String = "SPDX-License-Identifier: Apache-2.0"
 
   val cStyleComment = HeaderCommentStyle.cStyleBlockComment.copy(commentCreator = new CommentCreator() {
@@ -65,7 +82,8 @@ trait CopyrightHeader extends AutoPlugin {
         case Some(currentText) if isApacheCopyrighted(currentText) || isGenerated(currentText) =>
           currentText
         case Some(currentText) if isOnlyLightbendCopyrightAnnotated(currentText) =>
-          HeaderCommentStyle.cStyleBlockComment.commentCreator(text, existingText) + NewLine * 2 + currentText
+          HeaderCommentStyle.cStyleBlockComment.commentCreator(apacheFromAkkaSourceHeader,
+            existingText) + NewLine * 2 + currentText
         case Some(currentText) =>
           throw new IllegalStateException(s"Unable to detect copyright for header: [${currentText}]")
         case None =>