fixing tox standalone

Author: chayim

tox.ini

@@ -108,7 +108,7 @@ extras =
 setenv =
     CLUSTER_URL = "redis://localhost:16379/0"
 commands =
-    redis: pytest --cov=./ --cov-report=xml:coverage_redis.xml -W always -m 'not onlycluster' {posargs}
+    standalone: pytest --cov=./ --cov-report=xml:coverage_redis.xml -W always -m 'not onlycluster' {posargs}
     cluster: pytest --cov=./ --cov-report=xml:coverage_cluster.xml -W always -m 'not onlynoncluster and not redismod' --redis-url={env:CLUSTER_URL:} {posargs}
 
 [testenv:devenv]