When the git-plugin picks a commit to use based on the logic it has been given, it would be nice if there was an option to output the commit message for that commit to the build log, so that developers can easily see what is being built without having to manually compare the SHA-1. I.E. output the result of `git log -n 1`

This could be implemented as an "Additional Behavior" that could be added to any build.

This could also be added to the "Git Build Data" that is saved for each build.