Bump clap from 2.32.0 to 2.33.0

Bumps [clap](https://github.com/clap-rs/clap) from 2.32.0 to 2.33.0.
- [Release notes](https://github.com/clap-rs/clap/releases)
- [Changelog](https://github.com/clap-rs/clap/blob/master/CHANGELOG.md)
- [Commits](https://github.com/clap-rs/clap/commits)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Author: dependabot-support

Cargo.lock

@@ -10,7 +10,7 @@ version = "0.4.2-alpha.0"
 
 [dependencies]
 # Private dependencies.
-clap = "2.26"
+clap = "2.33"
 fs2 = "0.4"
 # Public dependencies, exposed through library API.
 error-chain = { version = "0.12", default-features = false }