Allow auth for redis check for tgraf

salt/common/tools/sbin/so-redis-count

@@ -7,5 +7,4 @@
 {%- set REDIS_PASS = salt['pillar.get']('redis:config:requirepass', '0') %}
 
 . /usr/sbin/so-common
-REDISCLI_AUTH={{ REDIS_PASS }}
-docker exec so-redis redis-cli llen logstash:unparsed
+docker exec so-redis /bin/sh -c "export REDISCLI_AUTH={{ REDIS_PASS }} && redis-cli llen logstash:unparsed"