Internal events: fix parenthesis appearing at the end of every log

Context

For instance:

Feb 21 16:22:21.767 - node.config.validation: the node configuration has been successfully validated.)
Created ./yolo/config.json for network: ghostnet.

I inverted a condition while quick fixing in !7704 (diffs) precisely at the given line.

Manually testing the MR

Checklist

• Document the interface of any function added or modified (see the coding guidelines)
• Document any change to the user interface, including configuration parameters (see node configuration)
• Provide automatic testing (see the testing guide).
• For new features and bug fixes, add an item in the appropriate changelog (docs/protocols/alpha.rst for the protocol and the environment, CHANGES.rst at the root of the repository for everything else).
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