The '*.bats' file type is for Bash Automated Testing System (BATS)
scripts. BATS scripts are Bash with a special '@test' extension but they
otherwise work with Vim's bash filetype.
See https://github.com/bats-core/bats-corecloses: #14039
Signed-off-by: Brandon Maier <brandon.maier@collins.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>