Merge pull request #1407 from gnocchixyz/mergify/bp/stable/4.6/pr-1405

Function call issue for parsing sentinel_fallback (backport #1405)

gnocchi/common/redis.py

@@ -119,7 +119,7 @@
 ]
 
 
-def _parse_sentinel(cls, sentinel):
+def _parse_sentinel(sentinel):
     # IPv6 (eg. [::1]:6379 )
     match = re.search(r'^\[(\S+)\]:(\d+)$', sentinel)
     if match: