- Fix C++11 string literal requirements.

runtime/vm/coverage.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/coverage.h"
 
 #include "include/dart_api.h"
 
 #include "vm/isolate.h"
 #include "vm/json_stream.h"
@@ skipping 94 matching lines @@
         cls = it.GetNextClass();
         if (cls.is_finalized()) {
           // Only classes that have been finalized do have a meaningful list of
           // functions.
           PrintClass(cls, jsarr);
         }
       }
     }
   }
 
-  const char* format = "%s/dart-cov-%"Pd"-%"Pd".json";
+  const char* format = "%s/dart-cov-%" Pd "-%" Pd ".json";
   intptr_t pid = OS::ProcessId();
   intptr_t len = OS::SNPrint(NULL, 0, format,
                              FLAG_coverage_dir, pid, isolate->main_port());
   char* filename = Isolate::Current()->current_zone()->Alloc<char>(len + 1);
   OS::SNPrint(filename, len + 1, format,
               FLAG_coverage_dir, pid, isolate->main_port());
   void* file = (*file_open)(filename, true);
   if (file == NULL) {
     OS::Print("Failed to write coverage file: %s\n", filename);
     return;
   }
   (*file_write)(stream.buffer()->buf(), stream.buffer()->length(), file);
   (*file_close)(file);
 }
 
 }  // namespace dart