Convert VarError to io::Error (#41)
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@ -21,7 +21,8 @@ pub fn is_tty<T: AsRawFd>(_stream: T) -> bool {
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#[cfg(target_os = "redox")]
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pub fn get_tty() -> io::Result<fs::File> {
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use std::env;
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fs::OpenOptions::new().read(true).write(true).open(try!(env::var("TTY")))
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let tty = try!(env::var("TTY").map_err(|x| io::Error::new(io::ErrorKind::NotFound, x)));
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fs::OpenOptions::new().read(true).write(true).open(tty)
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}
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/// Get the TTY device.
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