fix SyntaxError: f-string: unmatched '('

[saper]

No description provided.

[CLAassistant]

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[pmderodat]

Thank you for this fix. In order to be merged, the CLA needs to be signed: could you take care of this part? Alternatively, since the patch is trivial, we can push the fix ourselves: please let us know how you want to proceed.

[saper]

This change is not an "original contribution" in the legal sense (as needed by the CLA) and should be treated as a trivial public domain piece of code.