Update SHARED-FILES and license for Unicode 15.1.0.

In 2018 the license changed to use Unicode-3.0 license.
The Unicode License is a permissive MIT type of license.
Automation is updated to fetch the correct license file to
keep it in sync with the data files.

The new license is OSI approved and has an SPDX identifer:
https://opensource.org/license/unicode-license-v3
https://spdx.org/licenses/Unicode-3.0.html

The FSF and the GNU Project have been contacted to update
the license list for this license:
https://www.gnu.org/licenses/license-list.html

3 files changed, 38 insertions, 45 deletions

diff --git a/SHARED-FILES b/SHARED-FILES
index 2ff4442..07b7c72 100644
--- a/SHARED-FILES
+++ b/SHARED-FILES
@@ -166,7 +166,7 @@ gettext:
 # The following files are shared with the upstream Unicode project and must be
 # updated regularly to stay in sync with the upstream unicode releases.
 #
-# Merged from Unicode 13.0.0 release.
+# Merged from Unicode 15.1.0 release.
 unicode:
   localedata/unicode-gen/UnicodeData.txt
   localedata/unicode-gen/unicode-license.txt
diff --git a/localedata/unicode-gen/Makefile b/localedata/unicode-gen/Makefile
index 3004d4a..da74b1b 100644
--- a/localedata/unicode-gen/Makefile
+++ b/localedata/unicode-gen/Makefile
@@ -41,6 +41,7 @@ PYTHON3 = python3
 WGET = wget
 
 DOWNLOADS = UnicodeData.txt DerivedCoreProperties.txt EastAsianWidth.txt PropList.txt
+LICENSE = unicode-license.txt
 GENERATED = i18n_ctype tr_TR UTF-8 translit_combining translit_compat translit_circle translit_cjk_compat translit_font translit_fraction
 REPORTS = i18n_ctype-report UTF-8-report
 
@@ -137,9 +138,12 @@ translit_fraction: gen_translit_fraction.py
 	-o $@ --unicode_version $(UNICODE_VERSION)
 
 .PHONY: downloads clean-downloads
-downloads: $(DOWNLOADS)
+downloads: $(DOWNLOADS) $(LICENSE)
 clean-downloads:
-	-rm -f $(DOWNLOADS)
+	-rm -f $(DOWNLOADS) $(LICENSE)
 
 $(DOWNLOADS):
 	$(WGET) http://www.unicode.org/Public/$(UNICODE_VERSION)/ucd/$@
+
+$(LICENSE):
+	$(WGET) https://www.unicode.org/license.txt --output-document=$@
diff --git a/localedata/unicode-gen/unicode-license.txt b/localedata/unicode-gen/unicode-license.txt
index bdbb0a5..ee8e69b 100644
--- a/localedata/unicode-gen/unicode-license.txt
+++ b/localedata/unicode-gen/unicode-license.txt
@@ -1,50 +1,39 @@
-UNICODE, INC. LICENSE AGREEMENT - DATA FILES AND SOFTWARE
+UNICODE LICENSE V3
 
-    Unicode Data Files include all data files under the directories
-http://www.unicode.org/Public/, http://www.unicode.org/reports/, and
-http://www.unicode.org/cldr/data/. Unicode Data Files do not include PDF
-online code charts under the directory http://www.unicode.org/Public/.
-Software includes any source code published in the Unicode Standard or under
-the directories http://www.unicode.org/Public/,
-http://www.unicode.org/reports/, and http://www.unicode.org/cldr/data/.
+COPYRIGHT AND PERMISSION NOTICE
 
-    NOTICE TO USER: Carefully read the following legal agreement. BY
-DOWNLOADING, INSTALLING, COPYING OR OTHERWISE USING UNICODE INC.'S DATA FILES
-("DATA FILES"), AND/OR SOFTWARE ("SOFTWARE"), YOU UNEQUIVOCALLY ACCEPT, AND
-AGREE TO BE BOUND BY, ALL OF THE TERMS AND CONDITIONS OF THIS AGREEMENT. IF
-YOU DO NOT AGREE, DO NOT DOWNLOAD, INSTALL, COPY, DISTRIBUTE OR USE THE DATA
-FILES OR SOFTWARE.
-
-    COPYRIGHT AND PERMISSION NOTICE
+Copyright © 1991-2024 Unicode, Inc.
 
-    Copyright © 1991-2013 Unicode, Inc. All rights reserved. Distributed under
-the Terms of Use in http://www.unicode.org/copyright.html.
+NOTICE TO USER: Carefully read the following legal agreement. BY
+DOWNLOADING, INSTALLING, COPYING OR OTHERWISE USING DATA FILES, AND/OR
+SOFTWARE, YOU UNEQUIVOCALLY ACCEPT, AND AGREE TO BE BOUND BY, ALL OF THE
+TERMS AND CONDITIONS OF THIS AGREEMENT. IF YOU DO NOT AGREE, DO NOT
+DOWNLOAD, INSTALL, COPY, DISTRIBUTE OR USE THE DATA FILES OR SOFTWARE.
 
-    Permission is hereby granted, free of charge, to any person obtaining a
-copy of the Unicode data files and any associated documentation (the "Data
-Files") or Unicode software and any associated documentation (the "Software")
-to deal in the Data Files or Software without restriction, including without
-limitation the rights to use, copy, modify, merge, publish, distribute, and/or
-sell copies of the Data Files or Software, and to permit persons to whom the
-Data Files or Software are furnished to do so, provided that (a) the above
-copyright notice(s) and this permission notice appear with all copies of the
-Data Files or Software, (b) both the above copyright notice(s) and this
-permission notice appear in associated documentation, and (c) there is clear
-notice in each modified Data File or in the Software as well as in the
-documentation associated with the Data File(s) or Software that the data or
-software has been modified.
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of data files and any associated documentation (the "Data Files") or
+software and any associated documentation (the "Software") to deal in the
+Data Files or Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, and/or sell
+copies of the Data Files or Software, and to permit persons to whom the
+Data Files or Software are furnished to do so, provided that either (a)
+this copyright and permission notice appear with all copies of the Data
+Files or Software, or (b) this copyright and permission notice appear in
+associated Documentation.
 
-    THE DATA FILES AND SOFTWARE ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
+THE DATA FILES AND SOFTWARE ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
 KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD
-PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN
-THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL
-DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
-PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
-ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THE
-DATA FILES OR SOFTWARE.
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
+THIRD PARTY RIGHTS.
+
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN THIS NOTICE
+BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES,
+OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THE DATA
+FILES OR SOFTWARE.
 
-    Except as contained in this notice, the name of a copyright holder shall
+Except as contained in this notice, the name of a copyright holder shall
 not be used in advertising or otherwise to promote the sale, use or other
-dealings in these Data Files or Software without prior written authorization
-of the copyright holder.
+dealings in these Data Files or Software without prior written
+authorization of the copyright holder.