Remove trailing spaces from js files.

src/date.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 228 matching lines @@
 
 
 function LocalTime(time) {
   if (NUMBER_IS_NAN(time)) return time;
   // DaylightSavingsOffset called before local_time_offset used.
   return time + DaylightSavingsOffset(time) + local_time_offset;
 }
 
 
 var ltcache = {
-  key: null, 
+  key: null,
   val: null
 };
 
 function LocalTimeNoCheck(time) {
   var ltc = ltcache;
   if (%_ObjectEquals(time, ltc.key)) return ltc.val;
   if (time < -MAX_TIME_MS || time > MAX_TIME_MS) {
     return $NaN;
   }
 
@@ skipping 796 matching lines @@
     "toGMTString", DateToGMTString,
     "toUTCString", DateToUTCString,
     "getYear", DateGetYear,
     "setYear", DateSetYear,
     "toISOString", DateToISOString,
     "toJSON", DateToJSON
   ));
 }
 
 SetupDate();