Cosmetics: Avoid confusing indentation

This line had me confused for a second because
the condition looked like a cast and the if just
looked misplaced. Add a line break to prevent
such confusion.
diff --git a/src/hb-ot-layout.cc b/src/hb-ot-layout.cc
index ed7058b..3651c24 100644
--- a/src/hb-ot-layout.cc
+++ b/src/hb-ot-layout.cc
@@ -750,7 +750,8 @@
   if (s.find_lang_sys_index (HB_OT_TAG_DEFAULT_LANGUAGE, language_index))
     return false;
 
-  if (language_index) *language_index = HB_OT_LAYOUT_DEFAULT_LANGUAGE_INDEX;
+  if (language_index)
+    *language_index = HB_OT_LAYOUT_DEFAULT_LANGUAGE_INDEX;
   return false;
 }