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Rollup merge of #32148 - steveklabnik:gh31912, r=apasel422

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Small grammar fix in Guessing Game

When it was Option.expect(), there was an .ok().expect(), but now that it uses Result.expect(), there's only one method, not two.

Fixes #31912
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Steve Klabnik 2016-03-10 14:01:54 +03:00
commit c5ec055d1f
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src/doc/book/guessing-game.md
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@ -295,7 +295,7 @@ Rust warns us that we haven’t used the `Result` value. This warning comes from
a special annotation that `io::Result` has. Rust is trying to tell you that
you haven’t handled a possible error. The right way to suppress the error is
to actually write error handling. Luckily, if we want to crash if there’s
a problem, we can use these two little methods. If we can recover from the
a problem, we can use `expect()`. If we can recover from the
error somehow, we’d do something else, but we’ll save that for a future
project.