Add default info to comment in leveldb/options.h for no_block_cache

Summary: to ley clients know

Test Plan: visual

diff --git a/include/leveldb/options.h b/include/leveldb/options.h
index dee174ff2636297a8be712239ec2af4b32054211..8e3c64e4a80e5c94e996effe15413a67aafe9740 100644 (file)
--- a/include/leveldb/options.h
+++ b/include/leveldb/options.h
@@ -416,6 +416,7 @@ struct Options {
   // Disable block cache. If this is set to true,
   // then no block cache should be used, and the block_cache should
   // point to a nullptr object.
+  // Default: false
   bool no_block_cache;
 
   // Number of shards used for table cache.