logfmt_logger
Logger based off of env_logger using Heroku's [logfmt](https://brandur.org/logfmt) as an
output format.
### Preview
### Quick Start
> `Cargo.toml`
```toml
logfmt_logger = "0.1.1"
```
> `src/main.rs`
```rust
use std::env;
use logfmt_logger;
fn main() {
env::set_var("RUST_LOG", "trace");
logfmt_logger::init();
}
```