[Listener] Fix -f: do not quit anymore

owlps-listener/owlps-listenerd.c

@@ -326,6 +326,7 @@ void parse_config_file(int argc, char **argv)
                   " You must specify all options on the command line,"
                   " or default value will be used.\n") ;
 #endif // USE_CONFIG_FILE
+          break ;
         case 'h' :
           print_usage() ;
           exit(0) ;