Fix issue 417: incorrect %t placeholder expansion.

src/log.cc

 // Copyright 2009 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 1133 matching lines @@
         if (*p == '%') {
           p++;
           switch (*p) {
             case '\0':
               // If there's a % at the end of the string we back up
               // one character so we can escape the loop properly.
               p--;
               break;
             case 't': {
               // %t expands to the current time in milliseconds.
-              uint32_t time = static_cast<uint32_t>(OS::TimeCurrentMillis());
-              stream.Add("%u", time);
+              double time = OS::TimeCurrentMillis();
+              stream.Add("%.0f", FmtElm(time));
               break;
             }
             case '%':
               // %% expands (contracts really) to %.
               stream.Put('%');
               break;
             default:
               // All other %'s expand to themselves.
               stream.Put('%');
               stream.Put(*p);
@@ skipping 84 matching lines @@
   // Otherwise, if the sliding state window computation has not been
   // started we do it now.
   if (sliding_state_window_ == NULL) {
     sliding_state_window_ = new SlidingStateWindow();
   }
 #endif
 }
 
 
 } }  // namespace v8::internal