Fix Bazel compilation on Windows.

Fixes https://github.com/bazelbuild/bazel/issues/1826

--
MOS_MIGRATED_REVID=134261731
diff --git a/third_party/ijar/zlib_client.cc b/third_party/ijar/zlib_client.cc
index 1738a05..56e917e 100644
--- a/third_party/ijar/zlib_client.cc
+++ b/third_party/ijar/zlib_client.cc
@@ -14,6 +14,7 @@
 
 #include <stdlib.h>
 #include <algorithm>
+#include <cstdio>
 
 #include "third_party/ijar/common.h"
 #include "third_party/ijar/zlib_client.h"