Fix iterator copied() documentation example code
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@ -2717,12 +2717,12 @@ pub trait Iterator {
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/// ```
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/// let a = [1, 2, 3];
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///
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/// let v_cloned: Vec<_> = a.iter().copied().collect();
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/// let v_copied: Vec<_> = a.iter().copied().collect();
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///
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/// // copied is the same as .map(|&x| x)
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/// let v_map: Vec<_> = a.iter().map(|&x| x).collect();
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///
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/// assert_eq!(v_cloned, vec![1, 2, 3]);
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/// assert_eq!(v_copied, vec![1, 2, 3]);
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/// assert_eq!(v_map, vec![1, 2, 3]);
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/// ```
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#[stable(feature = "iter_copied", since = "1.36.0")]
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