ubuntu: add '--install_layout' argument
ubuntu: add '--install_layout' argument

Former-commit-id: 1a6b8413a96d5ca5a0e70dddadb4978c03cb072e [formerly aa891e7c70ec8e96310e2d8579f7f6b91cf2430e]
Former-commit-id: fc184bc985c5de99f914f7e1f5edec710a031592
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine