docs: fix misleading sysctldConfig examples

[jackfrancis]

Reason for Change:

This PR fixes documentation errata for the sysctldConfig interface.

Issue Fixed:

Fixes #3681

Requirements:

• uses conventional commit messages
• includes documentation
• adds unit tests
• tested upgrade from previous version

Notes:

[Michael-Sinz]

/lgtm

Thank you that would have saved me some time digging through the code :-)

[acs-bot]

@Michael-Sinz: changing LGTM is restricted to collaborators

In response to this:

/lgtm

Thank you that would have saved me some time digging through the code :-)

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[mboersma]

/lgtm

[acs-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: jackfrancis, mboersma, Michael-Sinz

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