printf(" --nb-ports=N: set the number of forwarding ports "
"(1 <= N <= %d).\n", nb_ports);
printf(" --coremask=COREMASK: hexadecimal bitmask of cores running "
- "the packet forwarding test. The master lcore is reserved for "
+ "the packet forwarding test. The main lcore is reserved for "
"command line parsing only, and cannot be masked on for "
"packet forwarding.\n");
printf(" --portmask=PORTMASK: hexadecimal bitmask of ports used "