treewide: convert GPLv2+ license info to SPDX tags

SPDX standardizes how source code conveys its copyright and licensing
information. See https://spdx.github.io/spdx-spec/1-rationale/ . SPDX
tags are adopted in many large projects, including things like the Linux
kernel.

Source/Core/DiscIO/Blob.cpp

@@ -1,6 +1,5 @@
 // Copyright 2008 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include <algorithm>
 #include <cstddef>

Source/Core/DiscIO/Blob.h

@@ -1,6 +1,5 @@
 // Copyright 2008 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/DiscIO/CISOBlob.cpp

@@ -1,6 +1,5 @@
 // Copyright 2010 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include <algorithm>
 #include <cstdio>

Source/Core/DiscIO/CISOBlob.h

@@ -1,6 +1,5 @@
 // Copyright 2008 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/DiscIO/CompressedBlob.cpp

@@ -1,6 +1,5 @@
 // Copyright 2008 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #ifdef _WIN32
 #include <windows.h>

Source/Core/DiscIO/CompressedBlob.h

@@ -1,6 +1,5 @@
 // Copyright 2008 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 // WARNING Code not big-endian safe.
 

Source/Core/DiscIO/DirectoryBlob.cpp

@@ -1,6 +1,5 @@
 // Copyright 2008 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "DiscIO/DirectoryBlob.h"
 

Source/Core/DiscIO/DirectoryBlob.h

@@ -1,6 +1,5 @@
 // Copyright 2008 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/DiscIO/DiscExtractor.cpp

@@ -1,6 +1,5 @@
 // Copyright 2017 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "DiscIO/DiscExtractor.h"
 

Source/Core/DiscIO/DiscExtractor.h

@@ -1,6 +1,5 @@
 // Copyright 2017 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/DiscIO/DiscScrubber.cpp

@@ -1,6 +1,5 @@
 // Copyright 2009 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "DiscIO/DiscScrubber.h"
 

Source/Core/DiscIO/DiscScrubber.h

@@ -1,6 +1,5 @@
 // Copyright 2008 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 // DiscScrubber removes the pseudorandom padding data from discs
 

Source/Core/DiscIO/DiscUtils.cpp

@@ -1,6 +1,5 @@
 // Copyright 2021 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "DiscIO/DiscUtils.h"
 

Source/Core/DiscIO/DiscUtils.h

@@ -1,6 +1,5 @@
 // Copyright 2021 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/DiscIO/DriveBlob.cpp

@@ -1,6 +1,5 @@
 // Copyright 2008 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include <algorithm>
 #include <cstdio>

Source/Core/DiscIO/DriveBlob.h

@@ -1,6 +1,5 @@
 // Copyright 2008 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/DiscIO/Enums.cpp

@@ -1,6 +1,5 @@
 // Copyright 2016 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include <map>
 #include <string>

Source/Core/DiscIO/Enums.h

@@ -1,6 +1,5 @@
 // Copyright 2016 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/DiscIO/FileBlob.cpp

@@ -1,6 +1,5 @@
 // Copyright 2008 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include <algorithm>
 #include <memory>

Source/Core/DiscIO/FileBlob.h

@@ -1,6 +1,5 @@
 // Copyright 2008 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/DiscIO/FileSystemGCWii.cpp

@@ -1,6 +1,5 @@
 // Copyright 2008 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include <algorithm>
 #include <cstddef>

Source/Core/DiscIO/FileSystemGCWii.h

@@ -1,6 +1,5 @@
 // Copyright 2008 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/DiscIO/Filesystem.cpp

@@ -1,6 +1,5 @@
 // Copyright 2008 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "DiscIO/Filesystem.h"
 

Source/Core/DiscIO/Filesystem.h

@@ -1,6 +1,5 @@
 // Copyright 2008 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/DiscIO/MultithreadedCompressor.h

@@ -1,6 +1,5 @@
 // Copyright 2020 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/DiscIO/NANDImporter.cpp

@@ -1,6 +1,5 @@
 // Copyright 2017 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "DiscIO/NANDImporter.h"
 

Source/Core/DiscIO/NANDImporter.h

@@ -1,6 +1,5 @@
 // Copyright 2017 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/DiscIO/ScrubbedBlob.cpp

@@ -1,6 +1,5 @@
 // Copyright 2020 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "DiscIO/ScrubbedBlob.h"
 

Source/Core/DiscIO/ScrubbedBlob.h

@@ -1,6 +1,5 @@
 // Copyright 2020 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/DiscIO/TGCBlob.cpp

@@ -1,6 +1,5 @@
 // Copyright 2016 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "DiscIO/TGCBlob.h"
 

Source/Core/DiscIO/TGCBlob.h

@@ -1,6 +1,5 @@
 // Copyright 2016 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/DiscIO/Volume.cpp

@@ -1,6 +1,5 @@
 // Copyright 2009 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "DiscIO/Volume.h"
 

Source/Core/DiscIO/Volume.h

@@ -1,6 +1,5 @@
 // Copyright 2008 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/DiscIO/VolumeDisc.cpp

@@ -1,6 +1,5 @@
 // Copyright 2020 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "DiscIO/VolumeDisc.h"
 

Source/Core/DiscIO/VolumeDisc.h

@@ -1,6 +1,5 @@
 // Copyright 2020 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/DiscIO/VolumeFileBlobReader.cpp

@@ -1,6 +1,5 @@
 // Copyright 2017 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "DiscIO/VolumeFileBlobReader.h"
 

Source/Core/DiscIO/VolumeFileBlobReader.h

@@ -1,6 +1,5 @@
 // Copyright 2017 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/DiscIO/VolumeGC.cpp

@@ -1,6 +1,5 @@
 // Copyright 2008 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "DiscIO/VolumeGC.h"
 

Source/Core/DiscIO/VolumeGC.h

@@ -1,6 +1,5 @@
 // Copyright 2008 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/DiscIO/VolumeVerifier.cpp

@@ -1,6 +1,5 @@
 // Copyright 2019 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "DiscIO/VolumeVerifier.h"
 

Source/Core/DiscIO/VolumeVerifier.h

@@ -1,6 +1,5 @@
 // Copyright 2019 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/DiscIO/VolumeWad.cpp

@@ -1,6 +1,5 @@
 // Copyright 2009 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include <algorithm>
 #include <cstddef>

Source/Core/DiscIO/VolumeWad.h

@@ -1,6 +1,5 @@
 // Copyright 2008 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/DiscIO/VolumeWii.cpp

@@ -1,6 +1,5 @@
 // Copyright 2008 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "DiscIO/VolumeWii.h"
 

Source/Core/DiscIO/VolumeWii.h

@@ -1,6 +1,5 @@
 // Copyright 2008 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/DiscIO/WIABlob.cpp

@@ -1,6 +1,5 @@
 // Copyright 2018 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "DiscIO/WIABlob.h"
 

Source/Core/DiscIO/WIABlob.h

@@ -1,6 +1,5 @@
 // Copyright 2018 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/DiscIO/WIACompression.cpp

@@ -1,6 +1,5 @@
 // Copyright 2020 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "DiscIO/WIACompression.h"
 

Source/Core/DiscIO/WIACompression.h

@@ -1,6 +1,5 @@
 // Copyright 2020 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/DiscIO/WbfsBlob.cpp

@@ -1,6 +1,5 @@
 // Copyright 2012 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "DiscIO/WbfsBlob.h"
 

Source/Core/DiscIO/WbfsBlob.h

@@ -1,6 +1,5 @@
 // Copyright 2008 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/DiscIO/WiiEncryptionCache.cpp

@@ -1,6 +1,5 @@
 // Copyright 2020 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "DiscIO/WiiEncryptionCache.h"
 

Source/Core/DiscIO/WiiEncryptionCache.h

@@ -1,6 +1,5 @@
 // Copyright 2020 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/DiscIO/WiiSaveBanner.cpp

@@ -1,6 +1,5 @@
 // Copyright 2009 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "DiscIO/WiiSaveBanner.h"
 

Source/Core/DiscIO/WiiSaveBanner.h

@@ -1,6 +1,5 @@
 // Copyright 2017 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once