Using getopt() for more coherence with the other tools

src/tty.c

@@ -57,7 +57,15 @@ static int _usage(void)
 /* main */
 int main(int argc, char * argv[])
 {
-	if(argc != 1)
+	int o;
+
+	while((o = getopt(argc, argv, "")) != -1)
+		switch(o)
+		{
+			default:
+				return _usage();
+		}
+	if(optind != argc)
 		return _usage();
 	return _tty();
 }