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names and years are hard to maintain and often out-of-date or plain wrong.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

23 files changed, 51 insertions, 255 deletions

diff --git a/Utilities/CMakeLists.txt b/Utilities/CMakeLists.txt
index cf6bb72..1e51ea2 100644
--- a/Utilities/CMakeLists.txt
+++ b/Utilities/CMakeLists.txt
@@ -1,14 +1,6 @@
-#=============================================================================
-# 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.
+
 subdirs(Doxygen KWStyle)
 
 if(CMAKE_DOC_TARBALL)
diff --git a/Utilities/Doxygen/CMakeLists.txt b/Utilities/Doxygen/CMakeLists.txt
index add5326..f1e8f95 100644
--- a/Utilities/Doxygen/CMakeLists.txt
+++ b/Utilities/Doxygen/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.
 
 if(NOT CMake_SOURCE_DIR)
   set(CMakeDeveloperReference_STANDALONE 1)
diff --git a/Utilities/Git/commit-msg b/Utilities/Git/commit-msg
index 9a5d1c1..348c3ea 100755
--- a/Utilities/Git/commit-msg
+++ b/Utilities/Git/commit-msg
@@ -1,15 +1,6 @@
 #!/usr/bin/env bash
-#=============================================================================
-# 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.
 
 die() {
   echo 'commit-msg hook failure' 1>&2
diff --git a/Utilities/Git/pre-commit b/Utilities/Git/pre-commit
index a35d111..d3c149c 100755
--- a/Utilities/Git/pre-commit
+++ b/Utilities/Git/pre-commit
@@ -1,15 +1,6 @@
 #!/usr/bin/env bash
-#=============================================================================
-# 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.
 
 die() {
   echo 'pre-commit hook failure' 1>&2
diff --git a/Utilities/Git/prepare-commit-msg b/Utilities/Git/prepare-commit-msg
index 1517bb2..511472e 100755
--- a/Utilities/Git/prepare-commit-msg
+++ b/Utilities/Git/prepare-commit-msg
@@ -1,15 +1,6 @@
 #!/usr/bin/env bash
-#=============================================================================
-# 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.
 
 # This is a placeholder for future prepare-commit-msg hooks.
 exit 0
diff --git a/Utilities/KWStyle/CMakeLists.txt b/Utilities/KWStyle/CMakeLists.txt
index b2c798c..3e96c33 100644
--- a/Utilities/KWStyle/CMakeLists.txt
+++ b/Utilities/KWStyle/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.
 
 #-----------------------------------------------------------------------------
 # CMake uses KWStyle for checking the coding style
diff --git a/Utilities/Scripts/BoostScanDeps.cmake b/Utilities/Scripts/BoostScanDeps.cmake
index 1fbea4b..2fd8f86 100644
--- a/Utilities/Scripts/BoostScanDeps.cmake
+++ b/Utilities/Scripts/BoostScanDeps.cmake
@@ -1,3 +1,6 @@
+# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+# file Copyright.txt or https://cmake.org/licensing for details.
+
 # Scan the Boost headers and determine the library dependencies.  Note
 # that this script only scans one Boost version at once; invoke once
 # for each Boost release.  Note that this does require the headers for
@@ -21,19 +24,6 @@
 
 # Written by Roger Leigh <rleigh@codelibre.net>
 
-#=============================================================================
-# Copyright 2014-2015 University of Dundee
-#
-# 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.)
-
 # Determine header dependencies on libraries using the embedded dependency information.
 #
 # component - the component to check (uses all headers from boost/${component})
diff --git a/Utilities/Sphinx/CMakeLists.txt b/Utilities/Sphinx/CMakeLists.txt
index be4850e..edb9469 100644
--- a/Utilities/Sphinx/CMakeLists.txt
+++ b/Utilities/Sphinx/CMakeLists.txt
@@ -1,14 +1,6 @@
-#=============================================================================
-# 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.
+
 if(NOT CMake_SOURCE_DIR)
   set(CMakeHelp_STANDALONE 1)
   cmake_minimum_required(VERSION 2.8.12.2 FATAL_ERROR)
diff --git a/Utilities/Sphinx/cmake.py b/Utilities/Sphinx/cmake.py
index 5c0406d..edc7667 100644
--- a/Utilities/Sphinx/cmake.py
+++ b/Utilities/Sphinx/cmake.py
@@ -1,14 +1,6 @@
-#=============================================================================
-# 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.
+
 import os
 import re
 
diff --git a/Utilities/Sphinx/conf.py.in b/Utilities/Sphinx/conf.py.in
index eb24a6e..9581458 100644
--- a/Utilities/Sphinx/conf.py.in
+++ b/Utilities/Sphinx/conf.py.in
@@ -1,14 +1,6 @@
-#=============================================================================
-# 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.
+
 import sys
 import os
 import re
diff --git a/Utilities/cmThirdParty.h.in b/Utilities/cmThirdParty.h.in
index cb8f0d5..210e727 100644
--- a/Utilities/cmThirdParty.h.in
+++ b/Utilities/cmThirdParty.h.in
@@ -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.  */
 #ifndef cmThirdParty_h
 #define cmThirdParty_h
 
diff --git a/Utilities/cm_bzlib.h b/Utilities/cm_bzlib.h
index 0eb7bd8..e7f6d89 100644
--- a/Utilities/cm_bzlib.h
+++ b/Utilities/cm_bzlib.h
@@ -1,14 +1,5 @@
-/*============================================================================
-  CMake - Cross Platform Makefile Generator
-  Copyright 2000-2012 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 cm_bzlib_h
 #define cm_bzlib_h
 
diff --git a/Utilities/cm_curl.h b/Utilities/cm_curl.h
index bf4c63c..fc2b8ab 100644
--- a/Utilities/cm_curl.h
+++ b/Utilities/cm_curl.h
@@ -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.  */
 #ifndef cm_curl_h
 #define cm_curl_h
 
diff --git a/Utilities/cm_expat.h b/Utilities/cm_expat.h
index c6c6683..d879337 100644
--- a/Utilities/cm_expat.h
+++ b/Utilities/cm_expat.h
@@ -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.  */
 #ifndef cm_expat_h
 #define cm_expat_h
 
diff --git a/Utilities/cm_jsoncpp_reader.h b/Utilities/cm_jsoncpp_reader.h
index 019044e..e78ec1e 100644
--- a/Utilities/cm_jsoncpp_reader.h
+++ b/Utilities/cm_jsoncpp_reader.h
@@ -1,14 +1,5 @@
-/*============================================================================
-  CMake - Cross Platform Makefile Generator
-  Copyright 2000-2015 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 cm_jsoncpp_reader_h
 #define cm_jsoncpp_reader_h
 
diff --git a/Utilities/cm_jsoncpp_value.h b/Utilities/cm_jsoncpp_value.h
index 81c9ae0..cf37758 100644
--- a/Utilities/cm_jsoncpp_value.h
+++ b/Utilities/cm_jsoncpp_value.h
@@ -1,14 +1,5 @@
-/*============================================================================
-  CMake - Cross Platform Makefile Generator
-  Copyright 2000-2015 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 cm_jsoncpp_value_h
 #define cm_jsoncpp_value_h
 
diff --git a/Utilities/cm_jsoncpp_writer.h b/Utilities/cm_jsoncpp_writer.h
index 597539d..33b2468 100644
--- a/Utilities/cm_jsoncpp_writer.h
+++ b/Utilities/cm_jsoncpp_writer.h
@@ -1,14 +1,5 @@
-/*============================================================================
-  CMake - Cross Platform Makefile Generator
-  Copyright 2000-2015 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 cm_jsoncpp_writer_h
 #define cm_jsoncpp_writer_h
 
diff --git a/Utilities/cm_kwiml.h b/Utilities/cm_kwiml.h
index fce8881..65cb35f 100644
--- a/Utilities/cm_kwiml.h
+++ b/Utilities/cm_kwiml.h
@@ -1,14 +1,5 @@
-/*============================================================================
-  CMake - Cross Platform Makefile Generator
-  Copyright 2000-2015 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 cm_kwiml_h
 #define cm_kwiml_h
 
diff --git a/Utilities/cm_libarchive.h b/Utilities/cm_libarchive.h
index c6a8a82..2269526 100644
--- a/Utilities/cm_libarchive.h
+++ b/Utilities/cm_libarchive.h
@@ -1,14 +1,5 @@
-/*============================================================================
-  CMake - Cross Platform Makefile Generator
-  Copyright 2000-2010 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 cm_libarchive_h
 #define cm_libarchive_h
 
diff --git a/Utilities/cm_lzma.h b/Utilities/cm_lzma.h
index 20cf1d7..013c724 100644
--- a/Utilities/cm_lzma.h
+++ b/Utilities/cm_lzma.h
@@ -1,14 +1,5 @@
-/*============================================================================
-  CMake - Cross Platform Makefile Generator
-  Copyright 2014 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 cm_lzma_h
 #define cm_lzma_h
 
diff --git a/Utilities/cm_uv.h b/Utilities/cm_uv.h
index baa9bfc..6d4813d 100644
--- a/Utilities/cm_uv.h
+++ b/Utilities/cm_uv.h
@@ -1,14 +1,5 @@
-/*============================================================================
-  CMake - Cross Platform Makefile Generator
-  Copyright 2000-2016 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 cm_uv_h
 #define cm_uv_h
 
diff --git a/Utilities/cm_xmlrpc.h b/Utilities/cm_xmlrpc.h
index 0bc93f4..08db89f 100644
--- a/Utilities/cm_xmlrpc.h
+++ b/Utilities/cm_xmlrpc.h
@@ -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.  */
 #ifndef cm_xmlrpc_h
 #define cm_xmlrpc_h
 
diff --git a/Utilities/cm_zlib.h b/Utilities/cm_zlib.h
index 6ff8e6c..2aee9f1 100644
--- a/Utilities/cm_zlib.h
+++ b/Utilities/cm_zlib.h
@@ -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.  */
 #ifndef cm_zlib_h
 #define cm_zlib_h