co-author 0.1.1

Co-Author your git commits from the command line
Documentation 
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use std::error::Error;

#[derive(Debug)]
pub struct HookError(String);

impl std::fmt::Display for HookError {
	fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
		write!(f, "{} hook failed, aborting", self.0)
	}
}

impl Error for HookError {}
impl HookError {
	pub fn with(msg: &str) -> Box<dyn Error> {
		Box::new(HookError(msg.to_string()))
	}
}