Improve style and fix formatting

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I've noticed some issues, particularly with formatting:

• Can't wrap {0} in an unqualified Variant ({1}). was never substituted, since the ' escapes the whole sequence
• explicitly creating an array for varargs

so I cloned it and cleaned it up a little

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Wow I actually missed the thing I wanted to fix.

Can't wrap {0} in an unqualified Variant ({1}). was never substituted, since the ' escapes the whole sequence

I didn't actually fix that in this PR -_-