git command
show list of all file in a commit
git ls-tree --name-only -r <commit-ish>

get list of changed files in a commit id
git diff-tree --no-commit-id --name-only -r <commit-ish>

by author
git log --author='justin'

by message
git log --all --grep='suite'

by message and author
git log --all --author='justin' --grep='suite'