auto merge of #14580 : utkarshkukreti/rust/fix-docs-for-result-map, r=alexcrichton
`reader.read_line()` includes trailing newline char, which makes `from_str` always return `None`.
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c605c2b57b
@ -432,11 +432,13 @@ impl<T, E> Result<T, E> {
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/// let line: IoResult<String> = reader.read_line();
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/// // Convert the string line to a number using `map` and `from_str`
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/// let val: IoResult<int> = line.map(|line| {
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/// from_str::<int>(line.as_slice()).unwrap_or(0)
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/// from_str::<int>(line.as_slice().trim_right()).unwrap_or(0)
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/// });
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/// // Add the value if there were no errors, otherwise add 0
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/// sum += val.ok().unwrap_or(0);
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/// }
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///
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/// assert!(sum == 10);
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/// ~~~
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#[inline]
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pub fn map<U>(self, op: |T| -> U) -> Result<U,E> {
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