Don't use version sort (bsd sort doesn't seem to have it)
@@ -9,7 +9,7 @@ main() {
https://github.com/rust-lang-nursery/mdbook \
| cut -d/ -f3 \
| grep -E '^v0\.3\.[0-9]+$' \
- | sort --version-sort \
+ | sort \
| tail -n1)
curl -LSfs https://japaric.github.io/trust/install.sh | \
