Rollup merge of #32464 - GuillaumeGomez:patch-6, r=steveklabnik
Improve some Option code example Part of #29366. r? @steveklabnik
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@ -93,16 +93,12 @@
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//! let msg = Some("howdy");
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//!
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//! // Take a reference to the contained string
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//! match msg {
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//! Some(ref m) => println!("{}", *m),
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//! None => (),
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//! if let Some(ref m) = msg {
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//! println!("{}", *m);
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//! }
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//!
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//! // Remove the contained string, destroying the Option
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//! let unwrapped_msg = match msg {
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//! Some(m) => m,
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//! None => "default message",
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//! };
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//! let unwrapped_msg = msg.unwrap_or("default message");
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//! ```
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//!
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//! Initialize a result to `None` before a loop:
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