convert license to SPDX

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

php-twig.spec

@@ -31,10 +31,11 @@
 
 Name:          php-%{composer_project}
 Version:       %{github_version}
-Release:       6%{?dist}
+Release:       7%{?dist}
 Summary:       The flexible, fast, and secure template engine for PHP
 
-License:       BSD
+# Automatically converted from old format: BSD - review is highly recommended.
+License:       LicenseRef-Callaway-BSD
 URL:           http://twig.sensiolabs.org
 Source0:       %{name}-%{github_version}-%{github_short}.tgz
 Source1:       makesrc.sh
@@ -179,6 +180,9 @@ exit $RETURN_CODE
 
 
 %changelog
+* Wed Sep  4 2024 Miroslav Suchý <msuchy@redhat.com> - 1.44.7-7
+- convert license to SPDX
+
 * Fri Jul 19 2024 Fedora Release Engineering <releng@fedoraproject.org> - 1.44.7-6
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild