convert license to SPDX

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

CharLS.spec

@@ -1,8 +1,9 @@
 Name:		CharLS
 Version:	2.4.2
-Release:	6%{?dist}
+Release:	7%{?dist}
 Summary:	An optimized implementation of the JPEG-LS standard
-License:	BSD
+# Automatically converted from old format: BSD - review is highly recommended.
+License:	LicenseRef-Callaway-BSD
 URL:		https://github.com/team-charls/charls
 Source0:	https://github.com/team-charls/charls/archive/%{version}/%{name}-%{version}.tar.gz
 
@@ -67,6 +68,9 @@ rm CharLS*.sln* -v
 
 
 %changelog
+* Mon Sep 02 2024 Miroslav Suchý <msuchy@redhat.com> - 2.4.2-7
+- convert license to SPDX
+
 * Wed Jul 17 2024 Fedora Release Engineering <releng@fedoraproject.org> - 2.4.2-6
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild