Werk #15930: check_mailboxes: Fix warning state "password input may be echoed"

Component Core & setup
Title check_mailboxes: Fix warning state "password input may be echoed"
Date Jul 26, 2023
Checkmk Edition Checkmk Raw (CRE)
Checkmk Version 2.1.0p36 2.2.0p8 2.3.0b1
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed

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