Cleanup style nits in metrics daemon.

metrics_library.h

 // Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef METRICS_LIBRARY_H_
 #define METRICS_LIBRARY_H_
 
 #include <sys/types.h>
 #include <string>
 
@@ skipping 57 matching lines @@
 
   // Formats a name/value message for Chrome in |buffer| and returns the
   // length of the message or a negative value on error.
   //
   // Message format is: | LENGTH(binary) | NAME | \0 | VALUE | \0 |
   //
   // The arbitrary |format| argument covers the non-LENGTH portion of the
   // message. The caller is responsible to store the \0 character
   // between NAME and VALUE (e.g. "%s%c%d", name, '\0', value).
   int32_t FormatChromeMessage(int32_t buffer_size, char* buffer,
-                              const char *format, ...);
+                              const char* format, ...);
 
   const char* uma_events_file_;
 };
 
-#endif /* METRICS_LIBRARY_H_ */
+#endif  // METRICS_LIBRARY_H_