Add missing @since tags

Change-Id: Ie4436986f847828cf1644325d692d64c344b03c5
Reviewed-on: https://gerrit.libreoffice.org/60482
Reviewed-by: Samuel Mehrbrodt <Samuel.Mehrbrodt@cib.de>
Tested-by: Samuel Mehrbrodt <Samuel.Mehrbrodt@cib.de>
diff --git a/offapi/com/sun/star/security/CertificateKind.idl b/offapi/com/sun/star/security/CertificateKind.idl
index b1ae35e..9f623045 100644
--- a/offapi/com/sun/star/security/CertificateKind.idl
+++ b/offapi/com/sun/star/security/CertificateKind.idl
@@ -14,6 +14,8 @@ module com { module sun { module star { module security {

/**
 * Enum definition of a certificate kind ( X509, OpenPGP )
 *
 * @since LibreOffice 5.4
 */
enum CertificateKind
{
diff --git a/offapi/com/sun/star/security/XCertificate.idl b/offapi/com/sun/star/security/XCertificate.idl
index 6feaa40..e581e9a 100644
--- a/offapi/com/sun/star/security/XCertificate.idl
+++ b/offapi/com/sun/star/security/XCertificate.idl
@@ -111,6 +111,8 @@ interface XCertificate : com::sun::star::uno::XInterface

    /**
     *  the kind of certificate, X.509 or OpenPGP
     *
     * @since LibreOffice 5.4
     */
    [attribute, readonly] com::sun::star::security::CertificateKind CertificateKind;