ip-link: cut one level indentation

Cut one level indentation to make things easier to read.
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>

ip/iplink.c

@@ -1184,7 +1184,9 @@ static void do_help(int argc, char **argv)
 
 int do_iplink(int argc, char **argv)
 {
-	if (argc > 0) {
+	if (argc < 1)
+		return ipaddr_list_link(0, NULL);
+
 	if (iplink_have_newlink()) {
 		if (matches(*argv, "add") == 0)
 			return iplink_modify(RTM_NEWLINK,
@@ -1215,9 +1217,8 @@ int do_iplink(int argc, char **argv)
 		do_help(argc-1, argv+1);
 		return 0;
 	}
-	} else
-		return ipaddr_list_link(0, NULL);
 
-	fprintf(stderr, "Command \"%s\" is unknown, try \"ip link help\".\n", *argv);
+	fprintf(stderr, "Command \"%s\" is unknown, try \"ip link help\".\n",
+			*argv);
 	exit(-1);
 }