errlog 0.0.2

A simple error logger based on anyhow
Documentation 
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# errlog

errlog is a simple log library based on anyhow, it wraps file name and line number for your error
message.

Add the errlog dependencies into your Cargo.toml, then import errlog macro

    use errlog::{elog, AnyContext, AnyResult};

Now you can use it in function that return `AnyResult<xxx>` such as

    return Err(elog!("Unkown file type")); 

or

    File:open(filepath).context(elog!("Cannot open file {}", filepath))?;