all: update LICENSE and copyright headers of modified files

I updated copyright headers of the some of the files we heavily
modified to set the example.

Change-Id: If24d525442bd6ba37133f1397f81c8d918ad725e
Reviewed-on: https://go-review.googlesource.com/c/vscode-go/+/236964
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
diff --git a/LICENSE b/LICENSE
index e3ae374..bec3260 100644
--- a/LICENSE
+++ b/LICENSE
@@ -2,7 +2,8 @@
 
 The MIT License (MIT)
 
-Copyright (c) Microsoft Corporation
+Original Work Copyright (c) 2015-2020 Microsoft Corporation
+Current Work and Modifications Copyright (c) 2020-present The Go Authors
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -20,4 +21,4 @@
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
\ No newline at end of file
+SOFTWARE.
diff --git a/build/all.bash b/build/all.bash
index a8dc87e..080b74a 100755
--- a/build/all.bash
+++ b/build/all.bash
@@ -1,6 +1,7 @@
 #!/bin/bash -e
 
 # Copyright (C) Microsoft Corporation. All rights reserved.
+# Modification copyright 2020 The Go Authors. All rights reserved.
 # Licensed under the MIT License. See LICENSE in the project root for license information.
 
 usage() {
diff --git a/build/merge.bash b/build/merge.bash
index b15cb72..dd5a21f 100755
--- a/build/merge.bash
+++ b/build/merge.bash
@@ -1,4 +1,8 @@
-#! /bin/bash
+#!/bin/bash
+
+# Copyright 2020 The Go Authors. All rights reserved.
+# Licensed under the MIT License. See LICENSE in the project root for license information.
+
 set -euo pipefail
 
 # TODO(rstambler): Remove this file, as syncing is no longer necessary.
diff --git a/src/goLanguageServer.ts b/src/goLanguageServer.ts
index 3e4da07..f6fac7f 100644
--- a/src/goLanguageServer.ts
+++ b/src/goLanguageServer.ts
@@ -1,5 +1,6 @@
 /*---------------------------------------------------------
  * Copyright (C) Microsoft Corporation. All rights reserved.
+ * Modification copyright 2020 The Go Authors. All rights reserved.
  * Licensed under the MIT License. See LICENSE in the project root for license information.
  *--------------------------------------------------------*/
 
diff --git a/src/goMain.ts b/src/goMain.ts
index 732f424..2ad9111 100644
--- a/src/goMain.ts
+++ b/src/goMain.ts
@@ -1,5 +1,6 @@
 /*---------------------------------------------------------
  * Copyright (C) Microsoft Corporation. All rights reserved.
+ * Modification copyright 2020 The Go Authors. All rights reserved.
  * Licensed under the MIT License. See LICENSE in the project root for license information.
  *--------------------------------------------------------*/
 
diff --git a/src/goPath.ts b/src/goPath.ts
index 06cbacf..2f4402a 100644
--- a/src/goPath.ts
+++ b/src/goPath.ts
@@ -1,5 +1,6 @@
 /*---------------------------------------------------------
  * Copyright (C) Microsoft Corporation. All rights reserved.
+ * Modification copyright 2020 The Go Authors. All rights reserved.
  * Licensed under the MIT License. See LICENSE in the project root for license information.
  *--------------------------------------------------------*/