SANTUARIO-568 - DSIGReference is missing a header guard

https://issues.apache.org/jira/browse/SANTUARIO-568


git-svn-id: https://svn.apache.org/repos/asf/santuario/xml-security-cpp/trunk@1894269 13f79535-47bb-0310-9956-ffa450edef68
1 file changed