Use generic param setting stuff

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@1003 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/varnishd.c

@@ -391,7 +391,7 @@ main(int argc, char *argv[])
 			s_arg = optarg;
 			break;
 		case 't':
-			params->default_ttl = strtoul(optarg, NULL, 0);
+			MCF_ParamSet(cli, "default_ttl", optarg);
 			break;
 		case 'T':
 			T_arg = optarg;