minor improvements

Author: GuyAv46

RLTest/env.py

@@ -398,7 +398,7 @@ def getClusterConnectionIfNeeded(self):
             return self.getConnection()
 
     def waitCluster(self, timeout_sec=40):
-        if isinstance(self.envRunner, ClusterEnv) or isinstance(self.envRunner, EnterpriseRedisClusterEnv):
+        if isinstance(self.envRunner, (ClusterEnv, EnterpriseRedisClusterEnv)):
             self.envRunner.waitCluster(timeout_sec)
 
     def addShardToClusterIfExists(self):

RLTest/redis_cluster.py

@@ -57,7 +57,7 @@ def _agreeOk(self):
             try:
                 status = con.execute_command('CLUSTER', 'INFO')
             except Exception as e:
-                print('got error on cluster slots, will try again, %s' % str(e))
+                print('got error on cluster info, will try again, %s' % str(e))
                 continue
             if 'cluster_state:ok' in str(status):
                 ok += 1