From: bors <bors@rust-lang.org>
Date: Thu, 5 Apr 2018 09:22:15 +0000 (+0000)
Subject: Auto merge of #5280 - klausi:clippy-191-trvials, r=matklad
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Auto merge of #5280 - klausi:clippy-191-trvials, r=matklad

chore(clippy): Simplify minor stuff found by clippy

Executed clippy 0.0.191, fixed the trivial stuff.
Filed https://github.com/rust-lang-nursery/rust-clippy/issues/2615 for all the format_err!() false positives.
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75ec2d3a8d045f90792b3ce5d7050cad43bfb3bf