Fix syntax error for `make clean` of gpdemo.
The missing environment caused the `make clean` raised syntax error.
@@ -36,5 +36,5 @@ clean:
@ echo "======================================================================"
@ echo "Deleting cluster.... "
@ echo "======================================================================"
- @ DEMO_PORT_BASE=$(PORT_BASE) ./demo_cluster.sh -d
+ @ MASTER_DEMO_PORT=$(MASTER_PORT) DEMO_PORT_BASE=$(PORT_BASE) NUM_PRIMARY_MIRROR_PAIRS=$(NUM_PRIMARY_MIRROR_PAIRS) ./demo_cluster.sh -d
@ echo ""
