fix circle ci for cockroach

test_cockroach.sh

@@ -1 +1 @@
-go test -db=postgres -conn_str="postgresql://root@localhost:26257/xorm_test?sslmode=disable"
+go test -db=postgres -conn_str="user=root port=26257 dbname=xorm_test sslmode=disable"

xorm_test.go

@@ -63,7 +63,7 @@ func createEngine(dbType, connStr string) error {
 				if err != nil {
 					return err
 				}
-				rows, err := db.Query(fmt.Sprintf("SELECT 1 FROM pg_database WHERE datname = 'xorm_test'"))
+				rows, err := db.Query("SELECT 1 FROM pg_database WHERE datname = 'xorm_test'")
 				if err != nil {
 					return fmt.Errorf("db.Query: %v", err)
 				}