Fix presubmit error (a tab in v8natives.js)

src/v8natives.js

 // Copyright 2006-2008 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 539 matching lines @@
          (!desc.hasWritable() || 
           SameValue(desc.isWritable(), current.isWritable())) &&
          (!desc.hasValue() ||
           SameValue(desc.getValue(), current.getValue())) &&
          (!desc.hasGetter() ||
           SameValue(desc.getGet(), current.getGet())) &&
          (!desc.hasSetter() ||
           SameValue(desc.getSet(), current.getSet()))) {
        return true;
      }
-                        
+
     // Step 7
     if (desc.isConfigurable() ||  desc.isEnumerable() != current.isEnumerable())
       throw MakeTypeError("redefine_disallowed", ["defineProperty"]);
     // Step 9
     if (IsDataDescriptor(current) != IsDataDescriptor(desc))
       throw MakeTypeError("redefine_disallowed", ["defineProperty"]);
     // Step 10
     if (IsDataDescriptor(current) && IsDataDescriptor(desc)) {
       if (!current.isWritable() && desc.isWritable())
         throw MakeTypeError("redefine_disallowed", ["defineProperty"]);
@@ skipping 453 matching lines @@
 
 // ----------------------------------------------------------------------------
 
 function SetupFunction() {
   InstallFunctions($Function.prototype, DONT_ENUM, $Array(
     "toString", FunctionToString
   ));
 }
 
 SetupFunction();