[skip ci]Add comment for getSegmentInfoByNode (#12411)

Signed-off-by: Nxige-16 <xi.ge@zilliz.com>

internal/querycoord/cluster.go

@@ -520,7 +520,7 @@ func (c *queryNodeCluster) getSegmentInfoByNode(ctx context.Context, nodeID int6
 		return res.Infos, nil
 	}
 
-	return nil, fmt.Errorf("ReleasePartitions: can't find query node by nodeID, nodeID = %d", nodeID)
+	return nil, fmt.Errorf("getSegmentInfoByNode: can't find query node by nodeID, nodeID = %d", nodeID)
 }
 
 type queryNodeGetMetricsResponse struct {