stderrlog 0.4.3

Logger that logs to stderr based on verbosity specified
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Logger that aims to provide a simple case of
[env_logger](https://crates.io/crates/env_logger) that just
logs to `stderr` based on verbosity.

## Documentation

For a working example for [StructOpt](https::/crates.io/crates/structopt),
[clap](https://crates.io/crates/clap), and
[docopt](https://crates.io/crates/docopt) please see the
[crate level documentation](https://docs.rs/stderrlog/*/stderrlog/).

For example binaries showing how
[module level logging](https://github.com/cardoe/stderrlog-rs/tree/master/examples/large-example) works, please see the `large-example` crate in `examples/`.

## Supported Versions

* `stderrlog` 0.4.x supports
  1) Rust 1.16.0 and newer
  2) `log` >= 0.4.1
* `stderrlog` 0.3.x supports
  1) Rust 1.16.0 and newer
  2) `log` 0.3.x
* `stderrlog` 0.2.x supports
  1) Rust 1.13.0 and newer
  2) `log` >= 0.3.0,  < 0.3.9

## Usage

Add this to your `Cargo.toml`:

```toml
[dependencies]
stderrlog = "0.4"
```

and this to your crate root:

```rust
extern crate stderrlog;
```

and this to your main():

```rust
stderrlog::new().verbosity(args.flag_v).quiet(args.flag_q).init().unwrap();
```

where your args struct is defined as:

```rust
struct Args {
    flag_v: usize,
    flag_q: bool,
    ...
}
```