Adding upstream version 3.1.0+dfsg.

Signed-off-by: Daniel Baumann <daniel@debian.org>

tools/lint/main_ni_only.c

@@ -0,0 +1,22 @@
+/**
+ * @file main_ni_only.c
+ * @brief non-interactive implementation of main() for those platforms without the linenoise library
+ *
+ * Copyright (c) 2015-2021 CESNET, z.s.p.o.
+ *
+ * This source code is licensed under BSD 3-Clause License (the "License").
+ * You may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://opensource.org/licenses/BSD-3-Clause
+ */
+
+int main_ni(int argc, char *argv[]);
+
+int done; /* for cmd.c */
+
+int
+main(int argc, char *argv[])
+{
+    return main_ni(argc, argv);
+}