Fixed warning [skip hazardlib]
Fixed warning [skip hazardlib]


Former-commit-id: 6b990a4cc043f98e8803b5e1a115eda9aa466de5 [formerly 12950185fc1427c414daae57220706a159619293] [formerly 12950185fc1427c414daae57220706a159619293 [formerly 38d3a3e17411058088ae315929dcc778689773b4]]
Former-commit-id: 7321cd679bd65529a6d2003e92973f6f995a1c74
Former-commit-id: 183bdad40b3f1aae139c53655f7f30c25c5276d2
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine