prepare release v0.1.8 (#76)

CHANGELOG.md

@@ -4,6 +4,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.1.8] - 2019-07-29
+### Changed
+- Explicitly specify types to arguments of 'libc::syscall'. [#74]
+
+[#74]: https://github.com/rust-random/getrandom/pull/74
+
 ## [0.1.7] - 2019-07-29
 ### Added
 - Support for hermit and l4re. [#61]

Cargo.toml

 [package]
 name = "getrandom"
-version = "0.1.7"
+version = "0.1.8"
 edition = "2018"
 authors = ["The Rand Project Developers"]
 license = "MIT OR Apache-2.0"