Low level utility to create commit objects. See also:
git commit. More information: https://git-scm.com/docs/git-commit-tree.
git commit-tree {{tree}} -m "{{message}}"
- for stdin):git commit-tree {{tree}} -F {{path/to/file}}
git commit-tree {{tree}} -m "{{message}}" {{[-S|--gpg-sign]}}
git commit-tree {{tree}} -m "{{message}}" -p {{parent_commit_sha}}