Next release of Weblate, the web based translation tool, will bring more flexibility in creating commit messages to allow include there whatever your project would like to see.
Originally commit message was fixed string hardcoded withing the code. Later it has been moved to configuration file to be finally placed into database to allow per project customization.
During these steps, it was also possible to add some basic information into the message (project and language code at the beginning). Weblate 1.4 will add some more options to add there, including translation stats. You can find all supported format strings in our documentation.
The default value now includes language name and translation status as can be seen in Weblate repository.