Rollup merge of #49446 - frewsxcv:frewsxcv-mention-optiono, r=GuillaumeGomez
Explicitly mention `Option` in `?` error message. Save users the time/effort of having to lookup what types implement the `Try` trait.
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Explicitly mention `Option` in `?` error message. Save users the time/effort of having to lookup what types implement the `Try` trait.