Audit link(1)

link.c

@@ -3,14 +3,24 @@
 
 #include "util.h"
 
+static void
+usage(void)
+{
+	eprintf("usage: %s target name\n", argv0);
+}
+
 int
 main(int argc, char *argv[])
 {
-	argv0 = argv[0];
+	ARGBEGIN {
+	default:
+		usage();
+	} ARGEND;
 
-	if (argc != 3)
-		eprintf("usage: %s target name\n", argv0);
-	if (link(argv[1], argv[2]) < 0)
+	if (argc != 2)
+		usage();
+	if (link(argv[0], argv[1]) < 0)
 		eprintf("link:");
+
 	return 0;
 }