minor fixes
minor fixes


Former-commit-id: 1a42eb55a1f8a86756d82f3276e56fa5edd18f6a [formerly e106e0487143f315cf21d3643c0ceb755b18d6e7]
Former-commit-id: b840a64181545848dab56b79d2f9098d5e9f58e6
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine