Fixed docstring
Fixed docstring


Former-commit-id: 086175740dbfb099ad1c95bd775c60924a473e57 [formerly 59ce4a9e12b56c3ed45fab7759c12f3d563a5030]
Former-commit-id: 5352ced50a046172358dff4dfa687d9f288aae55
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine