dbaccess: -Werror,-Wimplicit-fallthrough

Change-Id: I0580a4aec9762e774679ad3d6a567ec4e74c1908

dbaccess/source/filter/xml/xmlfilter.cxx

@@ -503,6 +503,7 @@ public:
                 break;
             case XML_TOK_CONTENT_BODY:
                 pContext = new DBXMLDocumentBodyContext(rImport, nPrefix, rLocalName);
+                break;
             default:
                 break;
         }