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Rollup merge of #98049 - imbolc:patch-3, r=Dylan-DPC

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Document an edge case of `str::split_once`
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Matthias Krüger 2022-06-13 21:35:58 +02:00 • committed by GitHub
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library/core/src/str/mod.rs
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@ -1632,6 +1632,7 @@ impl str {
///
/// ```
/// assert_eq!("cfg".split_once('='), None);
/// assert_eq!("cfg=".split_once('='), Some(("cfg", "")));
/// assert_eq!("cfg=foo".split_once('='), Some(("cfg", "foo")));
/// assert_eq!("cfg=foo=bar".split_once('='), Some(("cfg", "foo=bar")));
/// ```