Address code review, plus fix a compilation failure.

server/main.go

@@ -69,12 +69,11 @@ func mutationHandler(mu *gql.Mutation) error {
 		if len(ln) == 0 {
 			continue
 		}
-		nq, err := rdf.Parse(ln)
+		_, err := rdf.Parse(ln)
 		if err != nil {
 			glog.WithError(err).Error("While parsing RDF.")
 			return err
 		}
-		_ = nq
 	}
 	return nil
 }

worker/worker_test.go

@@ -83,7 +83,7 @@ func TestProcessTask(t *testing.T) {
 	addEdge(t, edge, posting.GetOrCreate(posting.Key(12, "friend"), ps))
 
 	query := NewQuery("friend", []uint64{10, 11, 12})
-	result, err := ProcessTask(query)
+	result, err := processTask(query)
 	if err != nil {
 		t.Error(err)
 	}