ldnssec-keygen: fix usage and return value while printing

ldnssec-keygen.c

@@ -29,7 +29,7 @@ usage(void)
 
 	fprintf(stderr, "Usage:\n"
 	    "\t%s [-b bits] algorithm\n"
-	    "\t%s [-a algorithm] [-d domain] [-k] -r ds|dnskey\n",
+	    "\t%s -r [-a algorithm] [-d domain] [-k] ds|dnskey\n",
 	    p, p);
 	exit(1);
 }
@@ -92,7 +92,7 @@ print_record_main(ldns_hash hash, int ksk, const char *domain, int argc,
 	ldns_rr_free(ds_rr);
 	ldns_key_deep_free(key);
 
-	return 1;
+	return 0;
 }
 
 static int