Update copyright to 2015
diff --git a/include/grpc/byte_buffer.h b/include/grpc/byte_buffer.h
index 094d301..ef87488 100644
--- a/include/grpc/byte_buffer.h
+++ b/include/grpc/byte_buffer.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2014, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -47,4 +47,4 @@
   } data;
 };
 
-#endif /* __GRPC_BYTE_BUFFER_H__ */
+#endif /* __GRPC_BYTE_BUFFER_H__ */
\ No newline at end of file