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names and years are hard to maintain and often out-of-date or plain wrong.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.

16 files changed, 32 insertions, 190 deletions

diff --git a/Source/QtDialog/AddCacheEntry.cxx b/Source/QtDialog/AddCacheEntry.cxx
index a94c54b..daf4bd1 100644
--- a/Source/QtDialog/AddCacheEntry.cxx
+++ b/Source/QtDialog/AddCacheEntry.cxx
@@ -1,15 +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 "AddCacheEntry.h"
 
 #include <QCompleter>
diff --git a/Source/QtDialog/AddCacheEntry.h b/Source/QtDialog/AddCacheEntry.h
index 05469af..cc710f5 100644
--- a/Source/QtDialog/AddCacheEntry.h
+++ b/Source/QtDialog/AddCacheEntry.h
@@ -1,15 +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.  */
 #ifndef AddCacheEntry_h
 #define AddCacheEntry_h
 
diff --git a/Source/QtDialog/CMakeLists.txt b/Source/QtDialog/CMakeLists.txt
index 80c0dc0..10fd718 100644
--- a/Source/QtDialog/CMakeLists.txt
+++ b/Source/QtDialog/CMakeLists.txt
@@ -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.
 
 project(QtDialog)
 if(POLICY CMP0020)
diff --git a/Source/QtDialog/CMakeSetup.cxx b/Source/QtDialog/CMakeSetup.cxx
index 52809b0..fad8075 100644
--- a/Source/QtDialog/CMakeSetup.cxx
+++ b/Source/QtDialog/CMakeSetup.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 "QCMake.h" // include to disable MS warnings
 
 #include "CMakeSetupDialog.h"
diff --git a/Source/QtDialog/CMakeSetupDialog.cxx b/Source/QtDialog/CMakeSetupDialog.cxx
index 14ce3f7..111b28a 100644
--- a/Source/QtDialog/CMakeSetupDialog.cxx
+++ b/Source/QtDialog/CMakeSetupDialog.cxx
@@ -1,15 +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 "CMakeSetupDialog.h"
 
 #include <QCloseEvent>
diff --git a/Source/QtDialog/CMakeSetupDialog.h b/Source/QtDialog/CMakeSetupDialog.h
index 992de01..1abdb46 100644
--- a/Source/QtDialog/CMakeSetupDialog.h
+++ b/Source/QtDialog/CMakeSetupDialog.h
@@ -1,15 +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.  */
 #ifndef CMakeSetupDialog_h
 #define CMakeSetupDialog_h
 
diff --git a/Source/QtDialog/QCMake.cxx b/Source/QtDialog/QCMake.cxx
index c84e153..cfb10f3 100644
--- a/Source/QtDialog/QCMake.cxx
+++ b/Source/QtDialog/QCMake.cxx
@@ -1,15 +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 "QCMake.h"
 
 #include <QCoreApplication>
diff --git a/Source/QtDialog/QCMake.h b/Source/QtDialog/QCMake.h
index 7eadb09..12f6037 100644
--- a/Source/QtDialog/QCMake.h
+++ b/Source/QtDialog/QCMake.h
@@ -1,15 +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.  */
 #ifndef QCMake_h
 #define QCMake_h
 
diff --git a/Source/QtDialog/QCMakeCacheView.cxx b/Source/QtDialog/QCMakeCacheView.cxx
index ed11f7b..9f5208a 100644
--- a/Source/QtDialog/QCMakeCacheView.cxx
+++ b/Source/QtDialog/QCMakeCacheView.cxx
@@ -1,15 +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 "QCMakeCacheView.h"
 
 #include <QApplication>
diff --git a/Source/QtDialog/QCMakeCacheView.h b/Source/QtDialog/QCMakeCacheView.h
index 6ad56fb..c1debf5 100644
--- a/Source/QtDialog/QCMakeCacheView.h
+++ b/Source/QtDialog/QCMakeCacheView.h
@@ -1,15 +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.  */
 #ifndef QCMakeCacheView_h
 #define QCMakeCacheView_h
 
diff --git a/Source/QtDialog/QCMakeWidgets.cxx b/Source/QtDialog/QCMakeWidgets.cxx
index fc481b8..6a55a76 100644
--- a/Source/QtDialog/QCMakeWidgets.cxx
+++ b/Source/QtDialog/QCMakeWidgets.cxx
@@ -1,15 +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 "QCMakeWidgets.h"
 
 #include <QDirModel>
diff --git a/Source/QtDialog/QCMakeWidgets.h b/Source/QtDialog/QCMakeWidgets.h
index 0d95e63..0db810c 100644
--- a/Source/QtDialog/QCMakeWidgets.h
+++ b/Source/QtDialog/QCMakeWidgets.h
@@ -1,15 +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.  */
 #ifndef QCMakeWidgets_h
 #define QCMakeWidgets_h
 
diff --git a/Source/QtDialog/RegexExplorer.cxx b/Source/QtDialog/RegexExplorer.cxx
index d23a08c..1512166 100644
--- a/Source/QtDialog/RegexExplorer.cxx
+++ b/Source/QtDialog/RegexExplorer.cxx
@@ -1,15 +1,5 @@
-/*============================================================================
-  CMake - Cross Platform Makefile Generator
-  Copyright 2015 Kitware, Inc., Gregor Jasny
-
-  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 "RegexExplorer.h"
 
 RegexExplorer::RegexExplorer(QWidget* p)
diff --git a/Source/QtDialog/RegexExplorer.h b/Source/QtDialog/RegexExplorer.h
index 3ac8a24..f1c1e5f 100644
--- a/Source/QtDialog/RegexExplorer.h
+++ b/Source/QtDialog/RegexExplorer.h
@@ -1,15 +1,5 @@
-/*============================================================================
-  CMake - Cross Platform Makefile Generator
-  Copyright 2015 Kitware, Inc., Gregor Jasny
-
-  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 RegexExplorer_h
 #define RegexExplorer_h
 
diff --git a/Source/QtDialog/WarningMessagesDialog.cxx b/Source/QtDialog/WarningMessagesDialog.cxx
index 3be6798..f608a84 100644
--- a/Source/QtDialog/WarningMessagesDialog.cxx
+++ b/Source/QtDialog/WarningMessagesDialog.cxx
@@ -1,15 +1,5 @@
-/*============================================================================
-  CMake - Cross Platform Makefile Generator
-  Copyright 2015 Kitware, Inc., Gregor Jasny
-
-  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 "WarningMessagesDialog.h"
 
 WarningMessagesDialog::WarningMessagesDialog(QWidget* prnt, QCMake* instance)
diff --git a/Source/QtDialog/WarningMessagesDialog.h b/Source/QtDialog/WarningMessagesDialog.h
index 4bb739c..acb830d 100644
--- a/Source/QtDialog/WarningMessagesDialog.h
+++ b/Source/QtDialog/WarningMessagesDialog.h
@@ -1,15 +1,5 @@
-/*============================================================================
-  CMake - Cross Platform Makefile Generator
-  Copyright 2015 Kitware, Inc., Gregor Jasny
-
-  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 WarningMessagesDialog_h
 #define WarningMessagesDialog_h