reduce diff with official busybox, do not use %s on defined strings
diff --git a/loginutils/getty.c b/loginutils/getty.c
index d62c724..6245665 100644
--- a/loginutils/getty.c
+++ b/loginutils/getty.c
@@ -462,7 +462,7 @@
 			if (read(STDIN_FILENO, &c, 1) < 1) {
 				if (errno == EINTR || errno == EIO)
 					exit(EXIT_SUCCESS);
-				bb_perror_msg_and_die("%s", bb_msg_read_error);
+				bb_perror_msg_and_die(bb_msg_read_error);
 			}
 
 			/* BREAK. If we have speeds to try,