minor fixes
minor fixes


Former-commit-id: 4977440e83f68747d7d5aaf36a79fef5adcd452c [formerly a60d3a65cdff5e11768935ac55984ca4ca33a35d]
Former-commit-id: 077f2abfc7e69235e4287735218540dd3e7587c3
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine