titan: accept either one or two positional arguments

the standalone / config-less mode was removed from gmid and put
into gemexp time ago...

ge.c

@@ -249,7 +249,7 @@ static __dead void
 usage(void)
 {
 	fprintf(stderr,
-	    "Version: " GE_STRING "\n"
+	    "Version: " GEMEXP_STRING "\n"
 	    "Usage: %s [-hRV] [-d certs-dir] [-H hostname] [-p port] [dir]\n",
 	    getprogname());
 	exit(1);
@@ -295,7 +295,7 @@ main(int argc, char **argv)
 			gen_eckey = 0;
 			break;
 		case 'V':
-			puts("Version: " GE_STRING);
+			puts("Version: " GEMEXP_STRING);
 			return 0;
 		default:
 			usage();

gmid.h

@@ -53,7 +53,7 @@
 #include "iri.h"
 
 #define VERSION_STR(n)	n " " VERSION
-#define GE_STRING	VERSION_STR("ge")
+#define GEMEXP_STRING	VERSION_STR("gemexp")
 #define GG_STRING	VERSION_STR("gg")
 #define GMID_STRING	VERSION_STR("gmid")
 

site/Makefile

@@ -62,7 +62,7 @@ serve-www:
 	python3 -m http.server --directory www 8888
 
 serve-gemini:
-	gmid -p 1966 ./gemini
+	./../gemexp ./gemini
 
 upload:
 	openrsync --rsync-path=openrsync --del -a www/ antartica:/var/www/gmid.omarpolo.com

titan.c

@@ -257,6 +257,8 @@ main(int argc, char **argv)
 		case 't':
 			token = optarg;
 			break;
+		default:
+			usage();
 		}
 	}
 	argc -= optind;
@@ -267,7 +269,7 @@ main(int argc, char **argv)
 	if (cert != NULL && key == NULL)
 		key = cert;
 
-	if (argc > 2)
+	if (argc != 1 && argc != 2)
 		usage();
 
 	in = open_input_file(argc, argv);