cosmetic changes; update copyright year and remove trailing spaces
diff --git a/src/UsefulBuf.c b/src/UsefulBuf.c
index 964e81b..5a7d37b 100644
--- a/src/UsefulBuf.c
+++ b/src/UsefulBuf.c
@@ -1,6 +1,6 @@
 /*==============================================================================
  Copyright (c) 2016-2018, The Linux Foundation.
- Copyright (c) 2018, Laurence Lundblade.
+ Copyright (c) 2018-2019, Laurence Lundblade.
  All rights reserved.
 
 Redistribution and use in source and binary forms, with or without