minor fixes
minor fixes


Former-commit-id: f58e7c69268f7d6767cf4897f1bfc55ca0e7de9e [formerly 4977440e83f68747d7d5aaf36a79fef5adcd452c] [formerly 4977440e83f68747d7d5aaf36a79fef5adcd452c [formerly a60d3a65cdff5e11768935ac55984ca4ca33a35d]]
Former-commit-id: 077f2abfc7e69235e4287735218540dd3e7587c3
Former-commit-id: 461f9c4e6cd9c6eedb91e2e83cca78fdfb96aacf
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine