filer store: leveldb2 fix nil entry error if not found

weed/filer/etcd/etcd_store.go

@@ -101,7 +101,7 @@ func (store *EtcdStore) FindEntry(ctx context.Context, fullpath weed_util.FullPa
 
 	resp, err := store.client.Get(ctx, string(key))
 	if err != nil {
-		return nil, fmt.Errorf("get %s : %v", entry.FullPath, err)
+		return nil, fmt.Errorf("get %s : %v", fullpath, err)
 	}
 
 	if len(resp.Kvs) == 0 {

weed/filer/leveldb/leveldb_store.go

@@ -107,7 +107,7 @@ func (store *LevelDBStore) FindEntry(ctx context.Context, fullpath weed_util.Ful
 		return nil, filer_pb.ErrNotFound
 	}
 	if err != nil {
-		return nil, fmt.Errorf("get %s : %v", entry.FullPath, err)
+		return nil, fmt.Errorf("get %s : %v", fullpath, err)
 	}
 
 	entry = &filer.Entry{

weed/filer/leveldb2/leveldb2_store.go

@@ -115,7 +115,7 @@ func (store *LevelDB2Store) FindEntry(ctx context.Context, fullpath weed_util.Fu
 		return nil, filer_pb.ErrNotFound
 	}
 	if err != nil {
-		return nil, fmt.Errorf("get %s : %v", entry.FullPath, err)
+		return nil, fmt.Errorf("get %s : %v", fullpath, err)
 	}
 
 	entry = &filer.Entry{