Vendor dependencies for 0.3.0 release

vendor/nix/test/sys/test_utsname.rs

@@ -0,0 +1,17 @@
+#[cfg(target_os = "linux")]
+#[test]
+pub fn test_uname_linux() {
+    assert_eq!(nix::sys::utsname::uname().unwrap().sysname(), "Linux");
+}
+
+#[cfg(apple_targets)]
+#[test]
+pub fn test_uname_darwin() {
+    assert_eq!(nix::sys::utsname::uname().unwrap().sysname(), "Darwin");
+}
+
+#[cfg(target_os = "freebsd")]
+#[test]
+pub fn test_uname_freebsd() {
+    assert_eq!(nix::sys::utsname::uname().unwrap().sysname(), "FreeBSD");
+}