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Remove unused imports
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@ -16,7 +16,6 @@ extern crate libc;
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use std::ffi::CString;
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use std::io::IoError;
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use std::os;
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use std::ptr;
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use libc::{c_char, c_int, execvp};
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const NAME: &'static str = "nice";
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@ -15,7 +15,6 @@
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extern crate getopts;
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use std::cmp::Ordering;
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use std::fmt::Show;
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use std::io::{print, File, BufferedReader};
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use std::io::stdio::stdin_raw;
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use std::str::Chars;
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@ -5,7 +5,6 @@ extern crate time;
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use std::io::{process, fs, FilePermission};
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use std::io::process::Command;
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use std::io::fs::PathExtensions;
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use std::io::pipe::PipeStream;
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use std::str::from_utf8;
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use std::borrow::ToOwned;
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