Copyright update, mostly to trigger bots again.

SPIRV/GlslangToSpv.cpp

 //
 // Copyright (C) 2014-2016 LunarG, Inc.
-// Copyright (C) 2015-2018 Google, Inc.
+// Copyright (C) 2015-2020 Google, Inc.
 // Copyright (C) 2017 ARM Limited.
 //
 // All rights reserved.

SPIRV/SpvBuilder.h

 //
 // Copyright (C) 2014-2015 LunarG, Inc.
-// Copyright (C) 2015-2018 Google, Inc.
+// Copyright (C) 2015-2020 Google, Inc.
 // Copyright (C) 2017 ARM Limited.
 //
 // All rights reserved.

SPIRV/SpvTools.cpp

 //
 // Copyright (C) 2014-2016 LunarG, Inc.
-// Copyright (C) 2018 Google, Inc.
+// Copyright (C) 2018-2020 Google, Inc.
 //
 // All rights reserved.
 //

StandAlone/StandAlone.cpp

 //
 // Copyright (C) 2002-2005  3Dlabs Inc. Ltd.
 // Copyright (C) 2013-2016 LunarG, Inc.
+// Copyright (C) 2016-2020 Google, Inc.
 //
 // All rights reserved.
 //

glslang/MachineIndependent/Constant.cpp

@@ -2,7 +2,7 @@
 // Copyright (C) 2002-2005  3Dlabs Inc. Ltd.
 // Copyright (C) 2012-2013 LunarG, Inc.
 // Copyright (C) 2017 ARM Limited.
-// Copyright (C) 2018 Google, Inc.
+// Copyright (C) 2018-2020 Google, Inc.
 //
 // All rights reserved.
 //

glslang/MachineIndependent/Initialize.cpp

 //
 // Copyright (C) 2002-2005  3Dlabs Inc. Ltd.
 // Copyright (C) 2012-2016 LunarG, Inc.
-// Copyright (C) 2015-2018 Google, Inc.
+// Copyright (C) 2015-2020 Google, Inc.
 // Copyright (C) 2017 ARM Limited.
 //
 // All rights reserved.

glslang/MachineIndependent/Intermediate.cpp

 //
 // Copyright (C) 2002-2005  3Dlabs Inc. Ltd.
 // Copyright (C) 2012-2015 LunarG, Inc.
-// Copyright (C) 2015-2018 Google, Inc.
+// Copyright (C) 2015-2020 Google, Inc.
 // Copyright (C) 2017 ARM Limited.
 //
 // All rights reserved.

glslang/MachineIndependent/Scan.cpp

@@ -2,6 +2,7 @@
 // Copyright (C) 2002-2005  3Dlabs Inc. Ltd.
 // Copyright (C) 2013 LunarG, Inc.
 // Copyright (C) 2017 ARM Limited.
+// Copyright (C) 2020 Google, Inc.
 //
 // All rights reserved.
 //

glslang/MachineIndependent/ShaderLang.cpp

 //
 // Copyright (C) 2002-2005  3Dlabs Inc. Ltd.
 // Copyright (C) 2013-2016 LunarG, Inc.
-// Copyright (C) 2015-2018 Google, Inc.
+// Copyright (C) 2015-2020 Google, Inc.
 //
 // All rights reserved.
 //

glslang/MachineIndependent/Versions.cpp

@@ -2,7 +2,7 @@
 // Copyright (C) 2002-2005  3Dlabs Inc. Ltd.
 // Copyright (C) 2012-2013 LunarG, Inc.
 // Copyright (C) 2017 ARM Limited.
-// Copyright (C) 2015-2018 Google, Inc.
+// Copyright (C) 2015-2020 Google, Inc.
 //
 // All rights reserved.
 //

glslang/MachineIndependent/glslang.m4

@@ -2,7 +2,7 @@
 // Copyright (C) 2002-2005  3Dlabs Inc. Ltd.
 // Copyright (C) 2012-2013 LunarG, Inc.
 // Copyright (C) 2017 ARM Limited.
-// Copyright (C) 2015-2018 Google, Inc.
+// Copyright (C) 2015-2019 Google, Inc.
 //
 // All rights reserved.
 //