Fix presubmit errors caused by updated depot tools

src/log-utils.h

 // Copyright 2006-2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 123 matching lines @@
 
   void AppendDetailed(String* str, bool show_impl_info);
 
   // Append a portion of a string.
   void AppendStringPart(const char* str, int len);
 
   // Write the log message to the log file currently opened.
   void WriteToLogFile();
 
  private:
-
   Log* log_;
   ScopedLock sl;
   int pos_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_LOG_UTILS_H_