local file sink: create backup files with permission 0755

weed/replication/sink/localsink/local_sink.go

@@ -78,13 +78,13 @@ func (localsink *LocalSink) CreateEntry(key string, entry *filer_pb.Entry, signa
 
 	if _, err := os.Stat(dir); os.IsNotExist(err) {
 		glog.V(4).Infof("Create Direcotry key: %s", dir)
-		if err = os.MkdirAll(dir, 0); err != nil {
+		if err = os.MkdirAll(dir, 0755); err != nil {
 			return err
 		}
 	}
 
 	writeFunc := func(data []byte) error {
-		writeErr := ioutil.WriteFile(key, data, 0)
+		writeErr := ioutil.WriteFile(key, data, 0755)
 		return writeErr
 	}