Remove extra blank line in hb-outline.cc
diff --git a/src/hb-outline.cc b/src/hb-outline.cc
index 0657e0e..29b1f53 100644
--- a/src/hb-outline.cc
+++ b/src/hb-outline.cc
@@ -4,7 +4,6 @@
  * Copyright © 2005  Werner Lemberg
  * Copyright © 2013-2015  Alexei Podtelezhnikov
  *
- *
  *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without