Squashed 'vendor/bats/' content from commit 64adaa0

git-subtree-dir: vendor/bats
git-subtree-split: 64adaa02c3c5f99abb0610e10c06cbdff35e0ff2
Merge commit '45a1546d4d738abc6dfdad42b55f55f43bb27ef1' as 'vendor/bats'