Uncomment fn() names to make ?-examples work#43811

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perlun wants to merge 1 commit intorust-lang:masterfrom

Commits on Aug 11, 2017

I noted tonight that using the examples straight away, e.g. in your `main` method or in any other method returning a non-`std::io::Result` value fails, because of reasons mentioned in https://githu…
perlun
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