Werk #12621: redis_info: Fix RRD creation

Component	Checks & agents
Title	redis_info: Fix RRD creation
Date	Apr 6, 2021
Level	Trivial Change
Class	Bug Fix
Compatibility	Incompatible - Manual interaction might be required
Checkmk versions & editions	2.1.0b1 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME) 2.0.0p2 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

The item of automatic discovered instances contained a semicolon, leading to "Error creating RRD" messages in ~/var/log/cmc.log and missing RRD files.

Rediscovery is needed.

To the list of all Werks