remove multiple dots in redis flags #10876

Job	Run time
lint	4m 19s
CodeQL	6m 32s
build	4m 22s
test	16m 13s
test-no-race	7m 48s
integration-configs-db	2m 41s
integration (requires_docker)	7m 25s
integration (integration_alertmanager)	4m 19s
integration (integration_backward_compatibility)	10m 29s
integration (integration_memberlist)	7m 11s
integration (integration_querier)	15m 19s
integration (integration_ruler)	5m 48s
integration (integration_query_fuzz)	4m 50s
deploy_website	0s
deploy	0s
	1h 37m 16s

Provide feedback