Use posix shell instead of bash for run.sh
Use posix shell instead of bash for run.sh

There are no bash specific uses in the script so we can use posix shell.

Signed-off-by: Natanael Copa <e73df79305d2c30c2a35966f4bca3b7b6f223156@docker.com>

shin-/compose,dnephin/compose,swoopla/compose,swoopla/compose,vdemeester/compose,sdurrheimer/compose,michael-k/docker-compose,thaJeztah/compose,funkyfuture/docker-compose,dnephin/compose,thaJeztah/compose,jrabbit/compose,jrabbit/compose,schmunk42/compose,funkyfuture/docker-compose,hoogenm/compose,schmunk42/compose,vdemeester/compose,hoogenm/compose,sdurrheimer/compose,shin-/compose,michael-k/docker-compose