TBR: syncbase: Bump max open files to 1000 (leveldb default).

Change-Id: I09181a1e1fca95262ee60e7ac4c170f497855499
diff --git a/services/syncbase/store/leveldb/db.go b/services/syncbase/store/leveldb/db.go
index fbb09aa..6e3b3ce 100644
--- a/services/syncbase/store/leveldb/db.go
+++ b/services/syncbase/store/leveldb/db.go
@@ -41,7 +41,7 @@
 	statsPrefix  string
 }
 
-const defaultMaxOpenFiles = 100
+const defaultMaxOpenFiles = 1000
 
 type OpenOptions struct {
 	CreateIfMissing bool