- if ( (argc == 1) || (cflag & dflag) || !(cflag | dflag) || ((argc - optind) < 2) ) {
- fprintf(stderr, "Usage: %s [-cdt] sourcefile targetfile\n", argv[0]);
+ if ( (argc == 1) || (cflag & dflag) || !(cflag | dflag) || ((argc - optind) < 2) || (mflag & sflag)) {
+ fprintf(stderr, "Usage: %s [-cds] [-t volsizekb] sourcefile targetfile [-m modeldumpfile]\n", argv[0]);