fix escaping in packager.sh
fix escaping in packager.sh


Former-commit-id: 01fb5ead71575687ae4a27ae0f763b34b9cf9b66 [formerly 01fb5ead71575687ae4a27ae0f763b34b9cf9b66 [formerly 5471d19dc8ea5a4fe09888f36224f07c7d160d5c]]
Former-commit-id: 6eceebf3967936f5c091a8b2dffa1fa22bf77eb6
Former-commit-id: dab2911d5235e9e73fbed130fac6a84f40cc902c
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine