bin/git-commit-filetree: Update version; forgotten in previous commits
bin/git-commit-filetree: Update version; forgotten in previous commits

This hasn't been updated for any of the bugfixes or features we've
added since we first put the version number here.

cjs-cynic-net/git-commit-filetree,cjs-cynic-net/git-commit-filetree,cjs-cynic-net/git-commit-filetree