Removed space to please lint.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3972 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/heap.cc

@@ -576,7 +576,7 @@ void Heap::PerformGarbageCollection(AllocationSpace space,
     MarkCompact(tracer);
   }
 
-  // Always perform a scavenge to make room in new space. 
+  // Always perform a scavenge to make room in new space.
   Scavenge();
 
   // Update the old space promotion limits after the scavenge due to