Fix share_table_files bug

Summary: constructor wasn't properly constructing BackupableDBOptions

Test Plan: no test

Reviewers: benj

Reviewed By: benj

CC: leveldb

Differential Revision: https://reviews.facebook.net/D16749

include/utilities/backupable_db.h

@@ -64,6 +64,7 @@ struct BackupableDBOptions {
                                bool _destroy_old_data = false)
       : backup_dir(_backup_dir),
         backup_env(_backup_env),
+        share_table_files(_share_table_files),
         info_log(_info_log),
         sync(_sync),
         destroy_old_data(_destroy_old_data) {}

utilities/backupable/backupable_db.cc

@@ -29,10 +29,12 @@ namespace rocksdb {
 void BackupableDBOptions::Dump(Logger* logger) const {
   Log(logger, "       Options.backup_dir: %s", backup_dir.c_str());
   Log(logger, "       Options.backup_env: %p", backup_env);
-  Log(logger, "Options.share_table_files: %d", share_table_files);
+  Log(logger, "Options.share_table_files: %d",
+      static_cast<int>(share_table_files));
   Log(logger, "         Options.info_log: %p", info_log);
-  Log(logger, "             Options.sync: %d", sync);
-  Log(logger, " Options.destroy_old_data: %d", destroy_old_data);
+  Log(logger, "             Options.sync: %d", static_cast<int>(sync));
+  Log(logger, " Options.destroy_old_data: %d",
+      static_cast<int>(destroy_old_data));
 }
 
 // -------- BackupEngineImpl class ---------