convert GPLv2+ license to SPDX

This is part of https://fedoraproject.org/wiki/Changes/SPDX_Licenses_Phase_4

chromaprint.spec

@@ -9,10 +9,11 @@
 
 Name:           chromaprint
 Version:        1.5.1
-Release:        18%{?dist}
+Release:        19%{?dist}
 Summary:        Library implementing the AcoustID fingerprinting
 
-License:        GPLv2+
+# Automatically converted from old format: GPLv2+ - review is highly recommended.
+License:        GPL-2.0-or-later
 URL:            http://www.acoustid.org/chromaprint
 Source:         https://github.com/acoustid/%{name}/releases/download/v%{version}/%{name}-%{version}.tar.gz
 
@@ -109,6 +110,9 @@ rm  -f %{buildroot}%{_libdir}/lib*.la
 %endif
 
 %changelog
+* Fri Jul 26 2024 Miroslav Suchý <msuchy@redhat.com> - 1.5.1-19
+- convert license to SPDX
+
 * Wed Jul 17 2024 Fedora Release Engineering <releng@fedoraproject.org> - 1.5.1-18
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild