upgrading package: rocksdb 6.6.3 -> 6.6.4

rocksdb/rocksdb.spec

@@ -31,8 +31,8 @@ Distribution: OpenPKG Community
 Class:        EVAL
 Group:        Database
 License:      Apache/GPL
-Version:      6.6.3
-Release:      20200129
+Version:      6.6.4
+Release:      20200201
 
 #   package options
 %option       with_java  no