Fix typos in copyright statements.

Change-Id: I783c56bb1d216ce3a47a19da230ee5f50aca2ab3
diff --git a/src/select.c b/src/select.c
index 5aee7d8..026d457 100644
--- a/src/select.c
+++ b/src/select.c
@@ -5,7 +5,7 @@
  * of the linux 2.4 netfilter subsystem. */
 /*
  * (C) 2000-2020 by Harald Welte <laforge@gnumonks.org>
- * All Rights Reserverd.
+ * All Rights Reserved.
  *
  * SPDX-License-Identifier: GPL-2.0+
  *