rprintf(F," -v, --verbose increase verbosity\n");
rprintf(F," -q, --quiet decrease verbosity\n");
rprintf(F," -c, --checksum always checksum\n");
rprintf(F," -v, --verbose increase verbosity\n");
rprintf(F," -q, --quiet decrease verbosity\n");
rprintf(F," -c, --checksum always checksum\n");