This is a message from the package maintainer of rmate-git. While the upstream project (https://github.com/textmate/rmate) has not provided an actual license file as of 2017-09-17, they do state in the `rmate.gemspec` file that the project is licensed under the MIT license. Even though the rmate-git package does not technically require `rmate.gemspec`, it is included in the /usr/share/licenses/rmate directory for reference.