Fix headers (#13255)

src/Compiler/DependencyManager/AssemblyResolveHandler.fs

-// Copyright (c) Microsoft Corporation.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information.
+// Copyright (c) Microsoft Corporation.  All Rights Reserved.  See License.txt in the project root for license information.
 
 namespace FSharp.Compiler.DependencyManager
 

src/Compiler/DependencyManager/AssemblyResolveHandler.fsi

-// Copyright (c) Microsoft Corporation.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information.
+// Copyright (c) Microsoft Corporation.  All Rights Reserved.  See License.txt in the project root for license information.
 
 namespace FSharp.Compiler.DependencyManager
 

src/Compiler/DependencyManager/DependencyProvider.fs

-// Copyright (c) Microsoft Corporation.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information.
+// Copyright (c) Microsoft Corporation.  All Rights Reserved.  See License.txt in the project root for license information.
 
 namespace FSharp.Compiler.DependencyManager
 

src/Compiler/DependencyManager/DependencyProvider.fsi

-// Copyright (c) Microsoft Corporation.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information.
+// Copyright (c) Microsoft Corporation.  All Rights Reserved.  See License.txt in the project root for license information.
 
 // Helper members to integrate DependencyManagers into F# codebase
 namespace FSharp.Compiler.DependencyManager

src/Compiler/DependencyManager/NativeDllResolveHandler.fs

-// Copyright (c) Microsoft Corporation.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information.
+// Copyright (c) Microsoft Corporation.  All Rights Reserved.  See License.txt in the project root for license information.
 
 namespace FSharp.Compiler.DependencyManager
 

src/Compiler/DependencyManager/NativeDllResolveHandler.fsi

-// Copyright (c) Microsoft Corporation.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information.
+// Copyright (c) Microsoft Corporation.  All Rights Reserved.  See License.txt in the project root for license information.
 
 namespace FSharp.Compiler.DependencyManager
 

src/Compiler/Facilities/BuildGraph.fs

-// Copyright (c) Microsoft Corporation.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information.
+// Copyright (c) Microsoft Corporation.  All Rights Reserved.  See License.txt in the project root for license information.
 
 module FSharp.Compiler.BuildGraph
 

src/Compiler/Facilities/BuildGraph.fsi

-// Copyright (c) Microsoft Corporation.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information.
+// Copyright (c) Microsoft Corporation.  All Rights Reserved.  See License.txt in the project root for license information.
 
 module internal FSharp.Compiler.BuildGraph
 

vsintegration/src/FSharp.Editor/Formatting/EditorFormattingService.fs

-// Copyright (c) Microsoft Corporation.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information.
+// Copyright (c) Microsoft Corporation.  All Rights Reserved.  See License.txt in the project root for license information.
 
 namespace Microsoft.VisualStudio.FSharp.Editor
 

vsintegration/tests/UnitTests/EditorFormattingServiceTests.fs

-// Copyright (c) Microsoft Corporation.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information.
+// Copyright (c) Microsoft Corporation.  All Rights Reserved.  See License.txt in the project root for license information.
 namespace Microsoft.VisualStudio.FSharp.Editor.Tests.Roslyn
 
 open System

vsintegration/tests/UnitTests/UnusedOpensTests.fs

-// Copyright (c) Microsoft Corporation.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information.
+// Copyright (c) Microsoft Corporation.  All Rights Reserved.  See License.txt in the project root for license information.
 [<NUnit.Framework.TestFixture>]
 module Tests.ServiceAnalysis.UnusedOpens