Update URLs for project and Source0

xdelta.org is dead, and the xdelta-devel repo redirects to xdelta-gpl.

Fixes rhbz#2294794.

xdelta.spec

@@ -1,15 +1,15 @@
 Summary: A binary file delta generator
 Name: xdelta
 Version: 3.1.0
-Release: 15%{?dist}
+Release: 17%{?dist}
 License: ASL 2.0
-Source0: https://github.com/jmacd/xdelta-devel/releases/download/v%{version}/xdelta3-%{version}.tar.gz
-URL: http://xdelta.org/
+# the latest release tarball is only in the pre-relicensing GPL repo
+Source0: https://github.com/jmacd/xdelta-gpl/releases/download/v%{version}/xdelta3-%{version}.tar.gz
+URL: https://github.com/jmacd/xdelta
 
 # for testsuite
 BuildRequires: make
 BuildRequires:  gcc, gcc-c++
-BuildRequires: ncompress
 BuildRequires: xz-devel
 
 # Man page day fixes
@@ -56,6 +56,13 @@ popd
 %{_mandir}/man1/xdelta*
 
 %changelog
+* Tue Jul 30 2024 Benjamin Gilbert <bgilbert@backtick.net> - 3.1.0-17
+- Fix dead project URL (rhbz#2294794)
+- Update Source0 URL
+
+* Wed Aug 03 2022 Benjamin Gilbert <bgilbert@backtick.net> - 3.1.0-16
+- Drop ncompress BuildRequires for EPEL 9
+
 * Sat Jul 23 2022 Fedora Release Engineering <releng@fedoraproject.org> - 3.1.0-15
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_37_Mass_Rebuild