Initial commit
Add 'subtree-child/' from commit 'f9ceaefdfb318fdbc0015a04b237a3bad9256ac2'

git-subtree-dir: subtree-child
git-subtree-mainline: 6824cd041ec51265d464a5b927bb6acb13f207be
git-subtree-split: f9ceaefdfb318fdbc0015a04b237a3bad9256ac2