packager.sh: improved weak sed substitution
packager.sh: improved weak sed substitution


Former-commit-id: e919148a7b08b5f13e63401800973c06e4bd7351 [formerly 369481befb4bf3cbc448eb7370d8d0a90194d632]
Former-commit-id: c6ed593b6e2ea9eb532697973bbfa18b58a56716
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine