libz-sys 1.1.5

Low-level bindings to the system libz library (also known as zlib).
Documentation
## Benchmarks

These benchmarks are written using [Google Benchmark](https://github.com/google/benchmark).

*Repetitions*

To increase the number of times each benchmark iteration is run use:

```
--benchmark_repetitions=20
```

*Filters*

To filter out which benchmarks are performed use:

```
--benchmark_filter="adler32*"
```