Make cpp_test exit with an error code if any lo_address errors were encountered.
Make cpp_test exit with an error code if any lo_address errors were encountered.

kneitinger/liblo,island-org/liblo,umlaeute/liblo,johne53/MB3Liblo,kneitinger/liblo,johne53/MB3Liblo,fsateler/liblo,radarsat1/liblo,fsateler/liblo,radarsat1/liblo,radarsat1/liblo,johne53/MB3Liblo,umlaeute/liblo,tuscland/liblo,johne53/MB3Liblo,fsateler/liblo,umlaeute/liblo,island-org/liblo,tuscland/liblo,kneitinger/liblo,island-org/liblo,tuscland/liblo