Use &[T] instead of &Vec<T> in multi_line parameter

[gcomte]

Summary

• Idiomatic Rust: accept &[Box<dyn Currency>] instead of &Vec<Box<dyn Currency>> (clippy::ptr_arg)

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: bf40764a-d3c3-45e1-aadf-971f8ddd7520

📥 Commits

Reviewing files that changed from the base of the PR and between 31e01f9 and e3b153c.

📒 Files selected for processing (1)

• src/print.rs

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/vec-ref-to-slice

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