[map] Fix copyright year

diff --git a/src/hb-map-private.hh b/src/hb-map-private.hh
index fabe391..a340a1a 100644 (file)
--- a/src/hb-map-private.hh
+++ b/src/hb-map-private.hh
@@ -1,5 +1,5 @@
 /*
- * Copyright © 2012,2017  Google, Inc.
+ * Copyright © 2018  Google, Inc.
  *
  *  This is part of HarfBuzz, a text shaping library.
  *