Implement Cdm::listStoredLicenses() code review changes

[ Merge of http://go/wvgerrit/23822 ]

This merges back to master, code review related changes when
"Implement Cdm::listStoredLicenses()" was merged from master
(http://go/wvgerrit/23189) to oc-dev (http://go/wvgerrit/23600)

Bug: 34628115
Test: WV unit/integration tests
Change-Id: Idf3acb0ff668d1cc3fe2e6fd400daa183bdb340b

libwvdrmengine/cdm/core/test/test_printers.cpp

@@ -606,6 +606,7 @@ void PrintTo(const enum CdmResponseType& value, ::std::ostream* os) {
       break;
     case PARSE_RESPONSE_ERROR_4: *os             << "PARSE_RESPONSE_ERROR_4";
       break;
+
     default:
       *os                                        << "Unknown CdmResponseType";
       break;