Fix missing newlines in iptables-save/restore output (Pavol Rusnak <prusnak@suse.cz>)

Bugzilla #568
diff --git a/iptables-restore.c b/iptables-restore.c
index 9b8563a..61631ae 100644
--- a/iptables-restore.c
+++ b/iptables-restore.c
@@ -157,13 +157,13 @@
 	if (optind == argc - 1) {
 		in = fopen(argv[optind], "r");
 		if (!in) {
-			fprintf(stderr, "Can't open %s: %s", argv[optind],
+			fprintf(stderr, "Can't open %s: %s\n", argv[optind],
 				strerror(errno));
 			exit(1);
 		}
 	}
 	else if (optind < argc) {
-		fprintf(stderr, "Unknown arguments found on commandline");
+		fprintf(stderr, "Unknown arguments found on commandline\n");
 		exit(1);
 	}
 	else in = stdin;