Werk #16890: check_ewon: ValueError (incomplete format)

Component	Checks & agents
Title	check_ewon: ValueError (incomplete format)
Date	Aug 6, 2024
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	2.4.0b1 Not yet released Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME) 2.3.0p12 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME) 2.2.0p33 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk Cloud (CCE), Checkmk MSP (CME)

Formatting a value with unit % would result in an invalid format-string making check_ewon crash with an exception ValueError (incomplete format). This change makes check_ewon use f-formatting instead of %-formatting.

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