Fix trailing whitespace in scripts and misc. files

Source/wtf/dtoa/diy-fp.cc

 // Copyright 2010 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 15 matching lines @@
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include "config.h"
 
 #include "diy-fp.h"
 #include "utils.h"
 
 namespace WTF {
 
 namespace double_conversion {
-    
+
     void DiyFp::Multiply(const DiyFp& other) {
         // Simply "emulates" a 128 bit multiplication.
         // However: the resulting number only contains 64 bits. The least
         // significant 64 bits are only used for rounding the most significant 64
         // bits.
         const uint64_t kM32 = 0xFFFFFFFFU;
         uint64_t a = f_ >> 32;
         uint64_t b = f_ & kM32;
         uint64_t c = other.f_ >> 32;
         uint64_t d = other.f_ & kM32;
         uint64_t ac = a * c;
         uint64_t bc = b * c;
         uint64_t ad = a * d;
         uint64_t bd = b * d;
         uint64_t tmp = (bd >> 32) + (ad & kM32) + (bc & kM32);
         // By adding 1U << 31 to tmp we round the final result.
         // Halfway cases will be round up.
         tmp += 1U << 31;
         uint64_t result_f = ac + (ad >> 32) + (bc >> 32) + (tmp >> 32);
         e_ += other.e_ + 64;
         f_ = result_f;
     }
-    
+
 }  // namespace double_conversion
 
 } // namespace WTF