Fixed two docstrings
Fixed two docstrings


Former-commit-id: bada9b44737dc87a0434c7f18a8d80380232af23 [formerly 0b2e9f0492f5304aa0b04166e3e1d79ee5fe8263]
Former-commit-id: 7e7250dfc2212b91002526b9334e8b2c4cc83104
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine