Fix presubmit errors.

src/version.cc

 // Copyright 2008 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 16 matching lines @@
 
 #include "v8.h"
 
 #include "version.h"
 
 // These macros define the version number for the current version.
 // NOTE these macros are used by the SCons build script so their names
 // cannot be changed without changing the SCons build script.
 #define MAJOR_VERSION     2
 #define MINOR_VERSION     1
-#define BUILD_NUMBER      1 
+#define BUILD_NUMBER      1
 #define PATCH_LEVEL       0
 #define CANDIDATE_VERSION true
 
 // Define SONAME to have the SCons build the put a specific SONAME into the
 // shared library instead the generic SONAME generated from the V8 version
 // number. This define is mainly used by the SCons build script.
 #define SONAME            ""
 
 namespace v8 {
 namespace internal {
@@ skipping 31 matching lines @@
       OS::SNPrintF(str, "libv8-%d.%d.%d%s.so",
                    GetMajor(), GetMinor(), GetBuild(), candidate);
     }
   } else {
     // Use specific SONAME.
     OS::SNPrintF(str, "%s", soname_);
   }
 }
 
 } }  // namespace v8::internal