Fix style issues caught by presubmit script.

src/runtime.cc

Index: src/runtime.cc
===================================================================
--- src/runtime.cc	(revision 1745)
+++ src/runtime.cc	(working copy)
@@ -6793,8 +6793,9 @@
 #endif  // DEBUG
   return Heap::undefined_value();
 }
-#endif // ENABLE_DEBUGGER_SUPPORT
+#endif  // ENABLE_DEBUGGER_SUPPORT
 
+
 // Finds the script object from the script data. NOTE: This operation uses
 // heap traversal to find the function generated for the source position
 // for the requested break point. For lazily compiled functions several heap