Fixed build failure of RocksDBLite test on options_file_test.cc

Summary: Fixed build failure of RocksDBLite test

Test Plan: options_file_test

Reviewers: igor, sdong, anthony, IslamAbdelRahman

Subscribers: dhruba

Differential Revision: https://reviews.facebook.net/D50595

db/options_file_test.cc

@@ -109,6 +109,9 @@ int main(int argc, char** argv) {
 #endif  // !(defined NDEBUG) || !defined(OS_WIN)
 }
 #else
+
+#include <cstdio>
+
 int main(int argc, char** argv) {
   printf("Skipped as Options file is not supported in RocksDBLite.\n");
   return 0;