[lo_url_get_port] only return a port if sscanf() found one
[lo_url_get_port] only return a port if sscanf() found one

check if the return-value is >0 rather than !=0

radarsat1/liblo,tuscland/liblo,tuscland/liblo,johne53/MB3Liblo,radarsat1/liblo,johne53/MB3Liblo,tuscland/liblo,johne53/MB3Liblo,johne53/MB3Liblo,radarsat1/liblo