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refine wording

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Bulat Musin
2018-01-14 08:20:58 +03:00
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second-edition/src/ch13-01-closures.md
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@@ -753,7 +753,7 @@ three `Fn` traits as follows:
closure must take ownership of these variables and move them into the closure
when it is defined. The `Once` part of the name represents the fact that the
closure can’t take ownership of the same variables more than once, so it can
only be called one time.
be called only once.
* `Fn` borrows values from the environment immutably.
* `FnMut` can change the environment because it mutably borrows values.