build: Default to CMD=/usr/bin/bash in our oscontainers
The ostree-container code does not have a default here because
it's a low level API.  Here, let's match the Fedora default so
the resulting containers can be run with a minimum of friction.
@@ -405,7 +405,7 @@ else
;;
oci)
ostree_tarfile_path="${name}-${buildid}-ostree.${basearch}.ociarchive"
- rpm-ostree ex-container 'export' --repo="${tmprepo}" "${buildid}" oci-archive:"${ostree_tarfile_path}".tmp:latest
+ rpm-ostree ex-container 'export' --cmd /usr/bin/bash --repo="${tmprepo}" "${buildid}" oci-archive:"${ostree_tarfile_path}".tmp:latest
;;
*) fatal "Unknown ostree-format: ${ostree_format}"
esac
