[build] Fix a clang warning

src/profiler/allocation-tracker.cc

Index: src/profiler/allocation-tracker.cc
diff --git a/src/profiler/allocation-tracker.cc b/src/profiler/allocation-tracker.cc
index 6acd1917aafae60872b9c74f5e7206e54f0cee09..cd095e3e24a17be833f0236f20de0b8343ce06f3 100644
--- a/src/profiler/allocation-tracker.cc
+++ b/src/profiler/allocation-tracker.cc
@@ -151,8 +151,8 @@ void AddressToTraceMap::Clear() {
 void AddressToTraceMap::Print() {
   PrintF("[AddressToTraceMap (%" PRIuS "): \n", ranges_.size());
   for (RangeMap::iterator it = ranges_.begin(); it != ranges_.end(); ++it) {
-    PrintF("[%p - %p] => %u\n", it->second.start, it->first,
-        it->second.trace_node_id);
+    PrintF("[%p - %p] => %u\n", static_cast<void*>(it->second.start),
+           static_cast<void*>(it->first), it->second.trace_node_id);
   }
   PrintF("]\n");
 }