Simplify CMake per-source license notices

Per-source copyright/license notice headers that spell out copyright holder
names and years are hard to maintain and often out-of-date or plain wrong.
Precise contributor information is already maintained automatically by the
version control tool.  Ultimately it is the receiver of a file who is
responsible for determining its licensing status, and per-source notices are
merely a convenience.  Therefore it is simpler and more accurate for
each source to have a generic notice of the license name and references to
more detailed information on copyright holders and full license terms.

Our `Copyright.txt` file now contains a list of Contributors whose names
appeared source-level copyright notices.  It also references version control
history for more precise information.  Therefore we no longer need to spell
out the list of Contributors in each source file notice.

Replace CMake per-source copyright/license notice headers with a short
description of the license and links to `Copyright.txt` and online information
available from "https://cmake.org/licensing".  The online URL also handles
cases of modules being copied out of our source into other projects, so we
can drop our notices about replacing links with full license text.

Run the `Utilities/Scripts/filter-notices.bash` script to perform the majority
of the replacements mechanically.  Manually fix up shebang lines and trailing
newlines in a few files.  Manually update the notices in a few files that the
script does not handle.

21 files changed, 42 insertions, 260 deletions

diff --git a/Tests/CMakeLib/testFindPackageCommand.cxx b/Tests/CMakeLib/testFindPackageCommand.cxx
index 1cddb0e..7622756 100644
--- a/Tests/CMakeLib/testFindPackageCommand.cxx
+++ b/Tests/CMakeLib/testFindPackageCommand.cxx
@@ -1,14 +1,5 @@
-/*============================================================================
-  CMake - Cross Platform Makefile Generator
-  Copyright 2000-2011 Kitware, Inc., Insight Software Consortium
-
-  Distributed under the OSI-approved BSD License (the "License");
-  see accompanying file Copyright.txt for details.
-
-  This software is distributed WITHOUT ANY WARRANTY; without even the
-  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-  See the License for more information.
-============================================================================*/
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
 #include "cmFindPackageCommand.h"
 
 #include <iostream>
diff --git a/Tests/CMakeLib/testGeneratedFileStream.cxx b/Tests/CMakeLib/testGeneratedFileStream.cxx
index b419b9e..1d2ec32 100644
--- a/Tests/CMakeLib/testGeneratedFileStream.cxx
+++ b/Tests/CMakeLib/testGeneratedFileStream.cxx
@@ -1,14 +1,5 @@
-/*============================================================================
-  CMake - Cross Platform Makefile Generator
-  Copyright 2000-2011 Kitware, Inc., Insight Software Consortium
-
-  Distributed under the OSI-approved BSD License (the "License");
-  see accompanying file Copyright.txt for details.
-
-  This software is distributed WITHOUT ANY WARRANTY; without even the
-  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-  See the License for more information.
-============================================================================*/
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
 #include "cmGeneratedFileStream.h"
 #include "cmSystemTools.h"
 
diff --git a/Tests/CMakeLib/testRST.cxx b/Tests/CMakeLib/testRST.cxx
index cc92693..e1b0903 100644
--- a/Tests/CMakeLib/testRST.cxx
+++ b/Tests/CMakeLib/testRST.cxx
@@ -1,14 +1,5 @@
-/*============================================================================
-  CMake - Cross Platform Makefile Generator
-  Copyright 2000-2013 Kitware, Inc., Insight Software Consortium
-
-  Distributed under the OSI-approved BSD License (the "License");
-  see accompanying file Copyright.txt for details.
-
-  This software is distributed WITHOUT ANY WARRANTY; without even the
-  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-  See the License for more information.
-============================================================================*/
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
 #include "cmRST.h"
 #include "cmSystemTools.h"
 
diff --git a/Tests/CMakeLib/testSystemTools.cxx b/Tests/CMakeLib/testSystemTools.cxx
index 5b5c8d2..b16b088 100644
--- a/Tests/CMakeLib/testSystemTools.cxx
+++ b/Tests/CMakeLib/testSystemTools.cxx
@@ -1,14 +1,5 @@
-/*============================================================================
-  CMake - Cross Platform Makefile Generator
-  Copyright 2000-2011 Kitware, Inc., Insight Software Consortium
-
-  Distributed under the OSI-approved BSD License (the "License");
-  see accompanying file Copyright.txt for details.
-
-  This software is distributed WITHOUT ANY WARRANTY; without even the
-  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-  See the License for more information.
-============================================================================*/
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
 #include "cmSystemTools.h"
 
 #include <iostream>
diff --git a/Tests/CMakeLib/testUTF8.cxx b/Tests/CMakeLib/testUTF8.cxx
index c99a925..fb5f3d8 100644
--- a/Tests/CMakeLib/testUTF8.cxx
+++ b/Tests/CMakeLib/testUTF8.cxx
@@ -1,14 +1,5 @@
-/*============================================================================
-  CMake - Cross Platform Makefile Generator
-  Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
-
-  Distributed under the OSI-approved BSD License (the "License");
-  see accompanying file Copyright.txt for details.
-
-  This software is distributed WITHOUT ANY WARRANTY; without even the
-  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-  See the License for more information.
-============================================================================*/
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
 #include <cm_utf8.h>
 #include <stdio.h>
 
diff --git a/Tests/CMakeLib/testXMLSafe.cxx b/Tests/CMakeLib/testXMLSafe.cxx
index c4aaf17..6c59128 100644
--- a/Tests/CMakeLib/testXMLSafe.cxx
+++ b/Tests/CMakeLib/testXMLSafe.cxx
@@ -1,14 +1,5 @@
-/*============================================================================
-  CMake - Cross Platform Makefile Generator
-  Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
-
-  Distributed under the OSI-approved BSD License (the "License");
-  see accompanying file Copyright.txt for details.
-
-  This software is distributed WITHOUT ANY WARRANTY; without even the
-  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-  See the License for more information.
-============================================================================*/
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
 #include "cmXMLSafe.h"
 
 #include <sstream>
diff --git a/Tests/CheckFortran.cmake b/Tests/CheckFortran.cmake
index 678bb82..93990ad 100644
--- a/Tests/CheckFortran.cmake
+++ b/Tests/CheckFortran.cmake
@@ -1,16 +1,6 @@
+# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+# file Copyright.txt or https://cmake.org/licensing for details.
 
-#=============================================================================
-# Copyright 2009 Kitware, Inc.
-#
-# Distributed under the OSI-approved BSD License (the "License");
-# see accompanying file Copyright.txt for details.
-#
-# This software is distributed WITHOUT ANY WARRANTY; without even the
-# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-# See the License for more information.
-#=============================================================================
-# (To distribute this file outside of CMake, substitute the full
-#  License text for the above reference.)
 
 if(NOT DEFINED CMAKE_Fortran_COMPILER)
   set(_desc "Looking for a Fortran compiler")
diff --git a/Tests/QtAutogen/abc.cpp b/Tests/QtAutogen/abc.cpp
index b19c2a1..2929b92 100644
--- a/Tests/QtAutogen/abc.cpp
+++ b/Tests/QtAutogen/abc.cpp
@@ -1,16 +1,5 @@
-/*============================================================================
-  CMake - Cross Platform Makefile Generator
-  Copyright 2004-2011 Kitware, Inc.
-  Copyright 2011 Alexander Neundorf (neundorf@kde.org)
-
-  Distributed under the OSI-approved BSD License (the "License");
-  see accompanying file Copyright.txt for details.
-
-  This software is distributed WITHOUT ANY WARRANTY; without even the
-  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-  See the License for more information.
-============================================================================*/
-
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
 #include "abc.h"
 #include "abc_p.h"
 
diff --git a/Tests/QtAutogen/abc.h b/Tests/QtAutogen/abc.h
index dc085b1..ec5f411 100644
--- a/Tests/QtAutogen/abc.h
+++ b/Tests/QtAutogen/abc.h
@@ -1,16 +1,5 @@
-/*============================================================================
-  CMake - Cross Platform Makefile Generator
-  Copyright 2004-2011 Kitware, Inc.
-  Copyright 2011 Alexander Neundorf (neundorf@kde.org)
-
-  Distributed under the OSI-approved BSD License (the "License");
-  see accompanying file Copyright.txt for details.
-
-  This software is distributed WITHOUT ANY WARRANTY; without even the
-  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-  See the License for more information.
-============================================================================*/
-
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
 #ifndef ABC_H
 #define ABC_H
 
diff --git a/Tests/QtAutogen/abc_p.h b/Tests/QtAutogen/abc_p.h
index c9139b7..be98487 100644
--- a/Tests/QtAutogen/abc_p.h
+++ b/Tests/QtAutogen/abc_p.h
@@ -1,16 +1,5 @@
-/*============================================================================
-  CMake - Cross Platform Makefile Generator
-  Copyright 2004-2011 Kitware, Inc.
-  Copyright 2011 Alexander Neundorf (neundorf@kde.org)
-
-  Distributed under the OSI-approved BSD License (the "License");
-  see accompanying file Copyright.txt for details.
-
-  This software is distributed WITHOUT ANY WARRANTY; without even the
-  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-  See the License for more information.
-============================================================================*/
-
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
 #ifndef ABC_P_H
 #define ABC_P_H
 
diff --git a/Tests/QtAutogen/bar.cpp b/Tests/QtAutogen/bar.cpp
index 2eefd08..734bd7a 100644
--- a/Tests/QtAutogen/bar.cpp
+++ b/Tests/QtAutogen/bar.cpp
@@ -1,16 +1,5 @@
-/*============================================================================
-  CMake - Cross Platform Makefile Generator
-  Copyright 2004-2011 Kitware, Inc.
-  Copyright 2011 Alexander Neundorf (neundorf@kde.org)
-
-  Distributed under the OSI-approved BSD License (the "License");
-  see accompanying file Copyright.txt for details.
-
-  This software is distributed WITHOUT ANY WARRANTY; without even the
-  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-  See the License for more information.
-============================================================================*/
-
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
 #include "sub/bar.h"
 
 #include <stdio.h>
diff --git a/Tests/QtAutogen/blub.cpp b/Tests/QtAutogen/blub.cpp
index bbebf08..1c497e0 100644
--- a/Tests/QtAutogen/blub.cpp
+++ b/Tests/QtAutogen/blub.cpp
@@ -1,16 +1,5 @@
-/*============================================================================
-  CMake - Cross Platform Makefile Generator
-  Copyright 2004-2011 Kitware, Inc.
-  Copyright 2011 Alexander Neundorf (neundorf@kde.org)
-
-  Distributed under the OSI-approved BSD License (the "License");
-  see accompanying file Copyright.txt for details.
-
-  This software is distributed WITHOUT ANY WARRANTY; without even the
-  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-  See the License for more information.
-============================================================================*/
-
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
 #include "blub.h"
 
 #include <stdio.h>
diff --git a/Tests/QtAutogen/blub.h b/Tests/QtAutogen/blub.h
index 7097b67..ff79878 100644
--- a/Tests/QtAutogen/blub.h
+++ b/Tests/QtAutogen/blub.h
@@ -1,16 +1,5 @@
-/*============================================================================
-  CMake - Cross Platform Makefile Generator
-  Copyright 2004-2011 Kitware, Inc.
-  Copyright 2011 Alexander Neundorf (neundorf@kde.org)
-
-  Distributed under the OSI-approved BSD License (the "License");
-  see accompanying file Copyright.txt for details.
-
-  This software is distributed WITHOUT ANY WARRANTY; without even the
-  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-  See the License for more information.
-============================================================================*/
-
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
 #ifndef BLUB_H
 #define BLUB_H
 
diff --git a/Tests/QtAutogen/foo.cpp b/Tests/QtAutogen/foo.cpp
index 23ecc30..f665eee 100644
--- a/Tests/QtAutogen/foo.cpp
+++ b/Tests/QtAutogen/foo.cpp
@@ -1,16 +1,5 @@
-/*============================================================================
-  CMake - Cross Platform Makefile Generator
-  Copyright 2004-2011 Kitware, Inc.
-  Copyright 2011 Alexander Neundorf (neundorf@kde.org)
-
-  Distributed under the OSI-approved BSD License (the "License");
-  see accompanying file Copyright.txt for details.
-
-  This software is distributed WITHOUT ANY WARRANTY; without even the
-  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-  See the License for more information.
-============================================================================*/
-
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
 #include "foo.h"
 
 #include <stdio.h>
diff --git a/Tests/QtAutogen/foo.h b/Tests/QtAutogen/foo.h
index 98f6292..3e03fe6 100644
--- a/Tests/QtAutogen/foo.h
+++ b/Tests/QtAutogen/foo.h
@@ -1,16 +1,5 @@
-/*============================================================================
-  CMake - Cross Platform Makefile Generator
-  Copyright 2004-2011 Kitware, Inc.
-  Copyright 2011 Alexander Neundorf (neundorf@kde.org)
-
-  Distributed under the OSI-approved BSD License (the "License");
-  see accompanying file Copyright.txt for details.
-
-  This software is distributed WITHOUT ANY WARRANTY; without even the
-  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-  See the License for more information.
-============================================================================*/
-
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
 #ifndef FOO_H
 #define FOO_H
 
diff --git a/Tests/QtAutogen/sub/bar.h b/Tests/QtAutogen/sub/bar.h
index c96e123..e4093f6 100644
--- a/Tests/QtAutogen/sub/bar.h
+++ b/Tests/QtAutogen/sub/bar.h
@@ -1,16 +1,5 @@
-/*============================================================================
-  CMake - Cross Platform Makefile Generator
-  Copyright 2004-2011 Kitware, Inc.
-  Copyright 2011 Alexander Neundorf (neundorf@kde.org)
-
-  Distributed under the OSI-approved BSD License (the "License");
-  see accompanying file Copyright.txt for details.
-
-  This software is distributed WITHOUT ANY WARRANTY; without even the
-  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-  See the License for more information.
-============================================================================*/
-
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
 #ifndef BAR_H
 #define BAR_H
 
diff --git a/Tests/QtAutogen/xyz.cpp b/Tests/QtAutogen/xyz.cpp
index c3c598e..e46c9d3 100644
--- a/Tests/QtAutogen/xyz.cpp
+++ b/Tests/QtAutogen/xyz.cpp
@@ -1,16 +1,5 @@
-/*============================================================================
-  CMake - Cross Platform Makefile Generator
-  Copyright 2004-2011 Kitware, Inc.
-  Copyright 2011 Alexander Neundorf (neundorf@kde.org)
-
-  Distributed under the OSI-approved BSD License (the "License");
-  see accompanying file Copyright.txt for details.
-
-  This software is distributed WITHOUT ANY WARRANTY; without even the
-  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-  See the License for more information.
-============================================================================*/
-
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
 #include "xyz.h"
 
 #include <stdio.h>
diff --git a/Tests/QtAutogen/xyz.h b/Tests/QtAutogen/xyz.h
index 1ba09a3..8b813fd 100644
--- a/Tests/QtAutogen/xyz.h
+++ b/Tests/QtAutogen/xyz.h
@@ -1,16 +1,5 @@
-/*============================================================================
-  CMake - Cross Platform Makefile Generator
-  Copyright 2004-2011 Kitware, Inc.
-  Copyright 2011 Alexander Neundorf (neundorf@kde.org)
-
-  Distributed under the OSI-approved BSD License (the "License");
-  see accompanying file Copyright.txt for details.
-
-  This software is distributed WITHOUT ANY WARRANTY; without even the
-  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-  See the License for more information.
-============================================================================*/
-
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
 #ifndef XYZ_H
 #define XYZ_H
 
diff --git a/Tests/QtAutogen/yaf.cpp b/Tests/QtAutogen/yaf.cpp
index 09335a9..70e26aa 100644
--- a/Tests/QtAutogen/yaf.cpp
+++ b/Tests/QtAutogen/yaf.cpp
@@ -1,16 +1,5 @@
-/*============================================================================
-  CMake - Cross Platform Makefile Generator
-  Copyright 2004-2011 Kitware, Inc.
-  Copyright 2011 Alexander Neundorf (neundorf@kde.org)
-
-  Distributed under the OSI-approved BSD License (the "License");
-  see accompanying file Copyright.txt for details.
-
-  This software is distributed WITHOUT ANY WARRANTY; without even the
-  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-  See the License for more information.
-============================================================================*/
-
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
 #include "yaf.h"
 #include "yaf_p.h"
 
diff --git a/Tests/QtAutogen/yaf.h b/Tests/QtAutogen/yaf.h
index 9755ca0..f271061 100644
--- a/Tests/QtAutogen/yaf.h
+++ b/Tests/QtAutogen/yaf.h
@@ -1,16 +1,5 @@
-/*============================================================================
-  CMake - Cross Platform Makefile Generator
-  Copyright 2004-2011 Kitware, Inc.
-  Copyright 2011 Alexander Neundorf (neundorf@kde.org)
-
-  Distributed under the OSI-approved BSD License (the "License");
-  see accompanying file Copyright.txt for details.
-
-  This software is distributed WITHOUT ANY WARRANTY; without even the
-  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-  See the License for more information.
-============================================================================*/
-
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
 #ifndef YAF_H
 #define YAF_H
 
diff --git a/Tests/QtAutogen/yaf_p.h b/Tests/QtAutogen/yaf_p.h
index cf317b8..ea5eed6 100644
--- a/Tests/QtAutogen/yaf_p.h
+++ b/Tests/QtAutogen/yaf_p.h
@@ -1,16 +1,5 @@
-/*============================================================================
-  CMake - Cross Platform Makefile Generator
-  Copyright 2004-2011 Kitware, Inc.
-  Copyright 2011 Alexander Neundorf (neundorf@kde.org)
-
-  Distributed under the OSI-approved BSD License (the "License");
-  see accompanying file Copyright.txt for details.
-
-  This software is distributed WITHOUT ANY WARRANTY; without even the
-  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-  See the License for more information.
-============================================================================*/
-
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
 #ifndef YAF_P_H
 #define YAF_P_H