dependabot-bot and dependabot[bot] Bump env_logger from 0.5.12 to 0.5.13
Bumps [env_logger](https://github.com/sebasmagri/env_logger) from 0.5.12 to 0.5.13.
- [Release notes](https://github.com/sebasmagri/env_logger/releases)
- [Commits](sebasmagri/env_logger@v0.5.12...v0.5.13)

Signed-off-by: dependabot[bot] <support@dependabot.com>
Latest commit c29a2eb Aug 27, 2018