Fix %ds in compiler.cc's new StringPrintf.

Change-Id: I4005f2fc4a8ef770ec273476be71fa0c3a9cbc0a
diff --git a/src/compiler.cc b/src/compiler.cc
index 8a996b5..f7c0297 100644
--- a/src/compiler.cc
+++ b/src/compiler.cc
@@ -63,12 +63,12 @@
   if (dex_file_count_ > 0) {
     uint64_t duration_ns = NanoTime() - start_ns_;
     uint64_t duration_ms = NsToMs(duration_ns);
-    std::string stats(StringPrintf("Compiled files:%d"
-                                   " classes:%d"
-                                   " methods:(abstract:%d"
-                                   " native:%d"
-                                   " regular:%d)"
-                                   " instructions:%d"
+    std::string stats(StringPrintf("Compiled files:%zd"
+                                   " classes:%zd"
+                                   " methods:(abstract:%zd"
+                                   " native:%zd"
+                                   " regular:%zd)"
+                                   " instructions:%zd"
                                    " (took %llums",
                                    dex_file_count_,
                                    class_count_,