Minor cleanup.

src/main.c

@@ -629,7 +629,6 @@ static int _tf_command_sandbox(const char* file, int argc, char* argv[])
 			show_usage = true;
 			break;
 		case 'f':
-			tf_printf("got -f %s\n", optarg);
 			fd = atoi(optarg);
 			break;
 		}