Silent some output of postinst [skip ci]
Silent some output of postinst [skip ci]


Former-commit-id: 98da92fbf81507dc9d857cb9e87ed4f3983e0d3a [formerly 245556675ccd667686991247ea910e9299f5650c]
Former-commit-id: 1c8eb23fa126ef00a6a5c5780afe828df016d6d6
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine