Fix clang build breakage (-Werror -Wformat).

am: b334c33d65

Change-Id: I36f6e388d8294d5650c2bcc1ab2eaec81e09a263

core/jni/fd_utils-inl.h

@@ -404,7 +404,7 @@ class FileDescriptorTable {
       //
       // TODO(narayan): This will be an error in a future android release.
       // error = true;
-      ALOGW("Zygote opened %d new file descriptor(s).", open_fds.size());
+      ALOGW("Zygote opened %zd new file descriptor(s).", open_fds.size());
 
       // TODO(narayan): This code will be removed in a future android release.
       std::set<int>::const_iterator it;